With the start of Japan’s rainy season (tsuyu) just around the corner, more travelers are agonizing over where to go in June. Outdoor sightseeing is constrained during this period, so many hotels promote their indoor facilities — but how are these claims actually rated by guests? In this article, we compiled review data from 48 properties (across approximately 327,000 reviews) drawn from four hotel categories — city hotels with pools, spa-rich resorts, hot-spring ryokan, and business hotels with public baths — to identify, in ranking form by category, which indoor-facility-strong hotels deliver genuinely high guest satisfaction during the rainy June period.

The Rainy Season as Peak Time for “Indoor-Consumption” Demand

According to the Japan Tourism Agency’s Survey on Overnight Travel Statistics, the room occupancy rate in June 2024 was 58.5%. While this is not a dramatic drop from the simple H1 average (59.8% in 2025), the picture diverges sharply by property type. City hotels and business hotels maintain rates above 70%, while ryokan stay in the 30% range — meaning hotel categories interpret rainy-season demand very differently.

For this analysis, we extracted four property categories that cater to “still enjoyable in the rain” demand in rainy June, and selected 48 top-ranked properties that meet a review-count threshold (100+ reviews; 200+ for ryokan, 500+ for business hotels). By combining category-level review scores with June sales dynamics, we surface, from a consumer perspective, what makes a hotel genuinely “rain-resilient.” For an adjacent phenomenon where tourism value actually inverts during the rainy season, our Hydrangea Hotspot Hotel ADR analysis covers the rainy-day premium that emerges around hydrangea sightseeing destinations.

The combined overall-score average for the four selected categories is 4.66/5.0. Against a national average that hovers around 3.7, top-ranked indoor-facility-strong properties stand out at a markedly higher level.

Four-Category Review Comparison: Ryokan and Pool Hotels Tie on Bath/Onsen

Aligning the category-level scores (Analysis Item 1) across the four types makes each category’s strengths apparent. City hotels with pools lead on Cleanliness (4.74) and Facilities & Amenities (4.58); hot-spring ryokan pull away from the pack on Bath/Onsen (4.73) and Food (4.50). Spa-rich resorts focus their muscle on Bath/Onsen (4.52) but score a relatively modest 4.24 on Facilities & Amenities.

Source: HotelBank Editorial Team research (aggregated from 320,000+ reviews, N=48 properties)

What stands out is that the city-hotels-with-pools category posts a Bath/Onsen score (4.72) essentially on par with hot-spring ryokan (4.73). Luxury hotels’ integrated spa-sauna-pool facilities have advanced to a point where, even in urban locations away from onsen towns, the hospitality of “water” is now rated at a level rivaling traditional ryokan. Their Food score, however, lands at 4.38 — short of ryokan (4.50) — meaning the dinner-included ryokan format still holds the edge on food.

Business hotels with public baths score in the low-to-mid 4.0 range across all dimensions, modest in absolute terms — but this reflects a different price tier. Achieving this satisfaction level at a +10–100% premium over the ¥14,700 national business-hotel average is itself notable.

Overview by Category: Overall Score, ADR, and Sell-Out Rate

Category	Properties	Overall Score	June ADR	Late-May ADR	June Sell-Out	Late-May Sell-Out
City Hotels with Pools	12	4.84	¥187,000	¥222,500	0.3%	3.4%
Spa-Rich Resorts	13	4.5	¥68,400	¥66,000	1.0%	2.3%
Hot-Spring Ryokan	13	4.78	¥122,300	¥123,400	7.9%	14.9%
Business Hotels w/ Public Bath	10	4.51	¥20,400	¥22,800	22.3%	21.2%

Source: Compiled from MetroEngines Research and HotelBank Editorial Team data

Looking at Analysis Item 4 — the gap between rainy-June OTA sell-out rates and normal-month rates — an interesting pattern emerges. Hot-spring ryokan nearly halve, from 14.9% in late May to 7.9% in June, while city hotels with pools fall sharply from 3.4% to 0.3%. By contrast, business hotels with public baths are the lone category that actually ticks up, from 21.2% to 22.3% — confirming that business-travel demand stays solid through the rainy season.

Source: Compiled from MetroEngines Research and HotelBank Editorial Team data

City Hotels with Pools: Top 7 by Review

With a leisure-purpose share of 92% (aggregated from review text), this category is overwhelmingly leisure-driven. Its overall-score average of 4.84 is the highest among the four categories — reflecting strong support from guests who plan rainy-June stays around indoor pools, spas, and lounges.

Rank	Property	Overall	Bath/Onsen	Facilities	Cleanliness	June ADR
1	Kiroro, A Tribute Portfolio Hotel, Hokkaido (キロロトリビュートポートフォリオホテル北海道) Hokkaido / 282 rooms / Luxury	5.00	–	3.88	4.28	–
2	The Peninsula Tokyo (ザ・ペニンシュラ東京) Tokyo / 314 rooms / Luxury	4.91	4.68	4.65	4.83	¥381,200
3	The Prince Gallery Tokyo Kioicho (ザ・プリンスギャラリー 東京紀尾井町) Tokyo / 250 rooms / Luxury	4.90	4.76	4.72	4.83	¥177,000
4	The Okura Tokyo Tokyo / 508 rooms / Luxury	4.86	4.83	4.8	4.9	¥147,100
5	Four Seasons Hotel Kyoto (フォーシーズンズホテル京都) Kyoto / 123 rooms / Luxury	4.85	4.71	4.55	4.8	–
6	Conrad Osaka (コンラッド大阪) Osaka / 164 rooms / Luxury	4.83	4.61	4.58	4.83	¥145,100
7	The Capitol Hotel Tokyu (ザ・キャピトルホテル東急) Tokyo / 251 rooms / Luxury	4.82	4.73	4.74	4.83	¥232,400

Source: HotelBank Editorial Team research / MetroEngines Research

Tokyo’s central-luxury cohort dominates the top tier. The Okura Tokyo deserves special mention: it sustains 4.80 on Cleanliness and 4.83 on Facilities while operating at 507-room scale, delivering an overall 4.86. Conrad Osaka, Arima Grand Hotel, and Hotel Chinzanso Tokyo round out a list of nationally iconic properties spanning Kansai and Kanto.

Spa-Rich Resorts: Top 7 by Review

This category groups properties branded around “Resort & Spa.” Its overall-score average is 4.5. The Bath/Onsen score of 4.52 may look modest beside the other categories, but given that 80% of these properties are located outside onsen towns, having artificial-onsen and spa-treatment facilities reach this level is meaningful.

Rank	Property	Overall	Bath/Onsen	Facilities	Cleanliness	June ADR
1	Hyatt Regency Hakone Resort & Spa (ハイアットリージェンシー箱根リゾート&スパ) Kanagawa / 80 rooms / Luxury	4.63	4.26	4.62	4.76	–
2	Kyoto Royal Hotel & Spa (京都ロイヤルホテル&スパ) Kyoto / 443 rooms / Luxury	4.57	–	3.39	4.2	–
3	Lake Shikotsu Tsuruga Resort Spa Mizu no Uta (しこつ湖 鶴雅リゾートスパ 水の謌) Hokkaido / 53 rooms / Luxury	4.55	4.74	4.37	4.61	¥144,900
4	Hotel & Spa Andaresort Izu Kogen (ホテル&スパ アンダリゾート伊豆高原) Shizuoka / 68 rooms / Luxury	4.55	4.55	4.63	4.38	¥63,300
5	Hikone Castle Resort & Spa (彦根キャッスル リゾート&スパ) Shiga / 52 rooms / Luxury	4.54	4.55	4.41	4.66	¥68,200
6	Mori no Sumika Resort & Spa (森の栖 リゾート&スパ) Ishikawa / 57 rooms / Luxury	4.54	4.61	4.26	4.55	¥77,500
7	Terrace Tateshina Resort & Spa (テラス蓼科 リゾート&スパ) Nagano / 60 rooms / Luxury	4.49	4.7	4.34	4.61	¥53,300

Source: HotelBank Editorial Team research / MetroEngines Research

The #1 Hyatt Regency Hakone leverages its onsen-town location while also operating dedicated spa facilities. Hokkaido properties (Lake Shikotsu Tsuruga, Jozankei Tsuruga) appear multiple times in the top tier — a “Hokkaido onsen culture + spa facility” formula that consumers reward. The prevalence of mid-sized properties (50–80 rooms) likely also enables the kind of finely tuned service design that drives high scores.

Hot-Spring Ryokan: Top 7 by Review

Leisure-purpose share is essentially 100%. The category-wide overall-score average of 4.78 ranks just below city hotels with pools, propelled by a two-pillar dominance in Bath/Onsen (4.73) and Food (4.50) that overwhelms other categories. For travelers seeking a “hunkered-down” rainy-season getaway, this category enjoys the strongest support.

Rank	Property	Overall	Bath/Onsen	Facilities	Cleanliness	June ADR
1	Tobira Onsen Myojinkan (扉温泉 明神館) Nagano / 44 rooms / Luxury	5.00	4.62	4.36	4.4	¥215,300
2	Tsuta Onsen Ryokan (蔦温泉旅館) Aomori / 34 rooms / High-Grade	4.85	4.88	4.28	4.55	¥130,200
3	Oga Onsen Yui no Yado Bettei Tsubaki (男鹿温泉 結いの宿 別邸 つばき) Akita / 40 rooms / High-Grade	4.84	4.66	3.98	4.29	¥84,700
4	Mt. Fuji Onsen Hotel Kaneyamaen (富士山温泉 ホテル鐘山苑) Yamanashi / 126 rooms / Luxury	4.80	4.67	4.46	4.68	¥142,900
5	Nagato Yumoto Onsen Otanisanso (長門湯本温泉 大谷山荘) Yamaguchi / 116 rooms / Luxury	4.80	4.9	4.55	4.75	¥141,400
6	Izu Imaihama Onsen Imaiso (伊豆今井浜温泉 今井荘) Shizuoka / 53 rooms / Luxury	4.79	4.51	4.09	4.36	¥103,200
7	Unazuki Onsen Enraku (宇奈月温泉 延楽) Toyama / 61 rooms / Luxury	4.77	4.77	4.22	4.4	¥175,600

Source: HotelBank Editorial Team research / MetroEngines Research

The #1 Tobira Onsen Myojinkan (Nagano) posts an astonishing overall 5.00. Long-established rural onsen properties — Yamaguchi’s Nagato Yumoto Otanisanso, Aomori’s Tsuta Onsen Ryokan — outscore Tokyo-area resorts, an interesting reversal. These are precisely the properties that can turn rain into atmosphere: “the green of the mountains through the window,” “the sound of falling rain over the open-air bath.” For how the same June month sees Mother’s Day and Father’s Day gift motivations reshape booking patterns at high-ADR onsen ryokan, see our companion analysis: Mother’s Day 5/10 & Father’s Day 6/21: Onsen Ryokan Booking Patterns for Filial Gift Travel.

Business Hotels with Public Baths: Top 7 by Review

Business hotels with adjacent public baths, primarily serving business-travel demand. The category-wide overall-score average is 4.51 — fully comparable to the other three categories — and at a ¥20,400 price point this is remarkable. Super Hotel and Dormy Inn brands dominate the field; their “public bath + breakfast + onsen” cost-performance trio drives strong repeat-stay intent.

Rank	Property	Overall	Bath/Onsen	Facilities	Cleanliness	June ADR
1	Super Hotel Inn Kurashiki (スーパーホテルInn倉敷) Okayama / 152 rooms / Budget	4.78	4.4	3.77	4.08	¥15,300
2	Super Hotel Ikebukuro West Natural Hot Spring (スーパーホテル池袋西口天然温泉) Tokyo / 201 rooms / Economy	4.77	4.45	3.96	4.32	¥23,300
3	Super Hotel Oyama (スーパーホテル小山) Tochigi / 87 rooms / Budget	4.56	4.1	4.03	4.42	¥19,000
4	Natural Hot Spring Sakaiminato Yunagi-no-Yu Onyado Nono (天然温泉 境港 夕凪の湯 御宿 野乃) Tottori / 194 rooms / High-Grade	4.51	4.59	4.45	4.6	¥30,900
5	Super Hotel Kumamoto-Yamaga (スーパーホテル熊本・山鹿) Kumamoto / 101 rooms / Budget	4.51	4.35	4.04	4.42	¥16,800
6	Musashino Grand Hotel & Spa (むさしのグランドホテル&スパ) Saitama / 48 rooms / Upper	4.43	4.55	4.09	4.49	¥28,500
7	Super Hotel Hakodate (スーパーホテル函館) Hokkaido / 108 rooms / Budget	4.41	3.67	3.98	4.35	¥13,000

Source: HotelBank Editorial Team research / MetroEngines Research

Super Hotel Inn Kurashiki’s overall 4.78 is within striking distance of top-tier hot-spring ryokan. The fact that business hotels with public baths are the rare category whose sell-out rate “rises slightly during the rainy season” is, against this backdrop, a structural outcome of stable business demand combined with high satisfaction driving repeat stays. For broader context on business-hotel ADR inflation and prefecture-level cost-performance comparisons, our Business Hotel Price Surge: National ADR Analysis & 10 Cost-Effective Prefectures goes deeper.

Analysis Item 3: Distribution of Overall Scores Across the 48 Properties

The overall-score distribution of the 48 selected properties (50 selected, 48 after deduplication) clusters most heavily in the 4.4–4.6 band (18 properties). The 4.8–5.0 band holds 15 properties, the 4.6–4.8 band 13, with most weight in the upper bands. Once a property meets baseline selection criteria (100+ reviews, room-count thresholds) within the indoor-facility-strong cohort, it tends to land in a “few duds” range — meaning the rational consumer approach is to first choose the category, then narrow to specific properties.

Source: HotelBank Editorial Team research (N=48 properties)

Analysis Item 2: The Reality of the Rainy-Season Premium

The June ADR for the 48 indoor-facility-strong properties exceeds the national category average across every type. The city-hotels-with-pools cohort runs roughly 2.6× the national deluxe-hotel average (¥72,100); the hot-spring ryokan cohort hits 3.7× the national ryokan average (¥32,600). The richness of indoor experiential content clearly translates into a price premium.

Source: Compiled from MetroEngines Research and HotelBank Editorial Team data (June 2026)

That said, this premium folds in many factors — location, grade, room count — and should not be read as a pure “rainy-season premium.” What’s more striking is that these top-ranked properties hold their ADR essentially at or above late-May levels through the rainy season, while sell-out rates clearly drop. The ability to maintain price in a softer-demand period suggests review scores are functioning as a “pre-booking proof of value” that defuses consumer anxiety and dampens price elasticity.

Reviews of Properties Offering “Rainy Day” Plans

Among the 48 analyzed properties, those promoting “rainy-day plans,” “tsuyu plans,” or “rainy-day discounts” as part of their identity were limited. When we tallied OTA plans containing “rainy-day” or “tsuyu” keywords, fewer than 10% of these top-ranked properties offered such plans.

This suggests most properties pursue a “value unchanged in the rainy season” strategy rather than a “discount because it’s rainy” approach. In fact, the average review score for properties without rainy-day plans was 4.66 — identical to the overall sample average (4.66). Indoor-facility strength alone appears sufficient to absorb rainy-season demand without requiring price-led promotions.

By contrast, in the business-hotel category, “weekday consecutive-night discounts” and “long-stay” plans appear in limited form, supporting business-travel demand through the rainy season. Unlike the leisure categories, the business segment still has room for price-led promotional moves.

Consumer Takeaway: Three Lenses for Choosing a June Stay

Lens 1: For a “hunkered-down trip,” the hot-spring ryokan category is the optimum. The 4.73 Bath/Onsen and 4.50 Food two-pillar performance is hard to replicate elsewhere; pairing the sound of rainfall with an open-air bath and a multi-course dinner-included plan is the very signature of a rainy-season getaway. Rural long-established properties outscore Tokyo-area resorts, so the trip plan needs to factor in transit.

Lens 2: For “urban leisure,” city hotels with pools. The luxury cohort in central Tokyo, Osaka, and Kyoto consistently delivers an overall ~4.8, enabling self-contained stays anchored on the indoor pool, spa, and on-property restaurants. ADR generally starts above ¥150,000, but June tends to run cheaper than late May.

Lens 3: For “business + onsen,” Super Hotel and Dormy Inn brands. An eye-popping cost-performance: 4.4–4.8 overall in the ¥15,000–¥30,000 band. Public baths, natural hot springs, and free breakfast — and a sell-out rate that doesn’t drop in the rainy season (in fact ticks up). The “freshen up at the onsen on a business trip” scenario has become firmly established.

Conclusion: Indoor-Facility Strength Carries Rainy-Season Demand

This analysis confirms that rainy June — long treated as a “demand trough” — is not necessarily an off-season for indoor-facility-strong properties. Across 320,000+ aggregated reviews, the 48 properties spanning four categories average an overall 4.66, well above the national average (~3.7), with each category absorbing rainy-season demand through a distinctive value proposition.

From a consumer perspective, the rational sequence is to first decide the type of “still-fun-in-the-rain” experience you want — onsen-and-cuisine, urban luxury, resort spa, or cost-performance focus — then narrow within that category by location and price. Each category’s review scores effectively serve as a “value certificate” that enables properties to hold price even into a demand headwind.