“How do I look up past hotel rates?” “Where can I find a list of hotel ADRs?” Operators, revenue managers and investors who try to check historical rates for competitors or an area quickly discover how few options there are. Public statistics publish occupancy and guest counts but not room rates; industry statistics are members-only or paid; and the prices shown on OTAs are rewritten every day, leaving no record of past values. This article sorts the ways to research past hotel rates and ADR into “what public statistics can and cannot tell you,” “REIT disclosures” and “time series of OTA listed prices,” and then presents MetroEngines Research’s list of estimated settled ADR for all 47 prefectures (September 2026, year-over-year change, and 2025 autumn and summer averages). The weighted national ADR for September 2026 was ¥11,000, up 4.9% YoY. Based on 2025 results, the autumn (Sep–Nov) rate was 1.5% below summer (Jul–Aug) and 8.7% above the previous autumn. We also identify which prefectures see autumn rates above summer and which see them below.

5 Ways to Research Past Hotel Rates — What Public Statistics Can and Cannot Tell You

Let us start with an inventory of the tools available. When you want to check past hotel rates as an “area-level rate benchmark,” the usable sources fall broadly into five groups. The table below sets out what each one tells you, at what granularity, when it is published and where its limits lie.

Source: Compiled by HotelBank Editorial Team from the published materials of each statistic

What matters here is the division of roles among public statistics. The Japan Tourism Agency’s Overnight Travel Statistics Survey is the only full-coverage statistic that shows “how many people stayed” and “what share of rooms were filled” by prefecture and property type; its August 2026 data (first preliminary figures) reported 62.68 million guest-nights (−6.7% YoY) and room occupancy of 64.4%. The survey, however, does not ask about prices. The only official way to track accommodation prices is the “accommodation” item of the Consumer Price Index (CPI) from the Ministry of Internal Affairs and Communications, which stood at 172.1 (2020=100) in September 2026, up 5.7% from the same month a year earlier (162.9). The CPI is an index, though, so it cannot tell you a level such as “how much a Tokyo city hotel costs on average.” How far back each source goes (CPI accommodation to January 1970, monthly ADR by prefecture to July 2019) is covered in Past Hotel Prices in Japan: CPI Back to 1970, Prefectures From 2019.

So where are property-level actuals? The only publicly available actuals are the monthly disclosures of hotel REITs. For example, Ichigo Hotel REIT (いちごホテルリート投資法人, 3463) reported ADR of ¥11,937 (+16.3% YoY) and occupancy of 87.2% for its full portfolio in September 2026, and Invincible Investment Corporation (インヴィンシブル投資法人, 8963) reported ADR of ¥15,461 (+7.6% YoY) and occupancy of 85.2% across 101 domestic hotels; both published on October 26. These figures are reliable as actuals, but because they cover only each REIT’s own properties, they are not suited to finding out “the going rate in my prefecture.”

This gap is filled by time series of OTA listed prices. Prices listed on OTAs are rewritten daily, so at any moment you can see only “today’s price”; but if listed prices are collected and stored continuously, you can reconstruct, for each stay date, “what it was selling for and how many days in advance.” MetroEngines Research applies segment-specific adjustment factors to these listed prices to calculate estimated settled ADR, and checks its accuracy against property-level results disclosed by listed REITs (91 properties, most recent 3 months, median error about 7%). The list in this article aggregates this estimated settled ADR as the median for each prefecture.

CPI Accommodation and Estimated Settled ADR Move in the Same Direction — +5.7% and +4.9% in September 2026

Checking how well the figures from each source agree helps you decide when to use which. The table below compares the YoY change in the CPI for accommodation with the YoY change in the national average of estimated settled ADR across the 47 prefectures, weighted by number of properties.

Source: Ministry of Internal Affairs and Communications, Consumer Price Index (e-Stat, table ID 0003427113) / MetroEngines Research; compiled by HotelBank Editorial Team (ADR = median estimated settled ADR of the 47 prefectures, weighted by number of properties covered; Sep 2026 N=17,136 properties)

In September the CPI rose 5.7% and estimated settled ADR rose 4.9%, close in both direction and magnitude. In July–August the CPI was flat to slightly positive while ADR fell by around 4%, a visible divergence. The CPI is an index that captures accommodation prices actually paid by consumers through a national price survey, whereas the ADR in this article is a property-side room rate estimated from OTA listed prices, so both the subject and the calculation method differ. Even so, the fact that they move in the same direction in most months shows that the OTA listed-price time series works as an approximation that fills the “rate gap in public statistics.” Conversely, months where they diverge are often cases in which a large swing in one area, such as Osaka in summer, moves the weighted average, so the data must be broken down and read by prefecture.

Monthly Trend in National ADR — Autumn Rises Step by Step from September to November

Before getting into the prefecture list, let us check the seasonal pattern of the national weighted average. The chart below overlays 2024, 2025 and 2026, with January to December on the horizontal axis.

Source: MetroEngines Research; compiled by HotelBank Editorial Team (median estimated settled ADR of the 47 prefectures, weighted by number of properties covered. Oct–Nov 2026 are estimates based on rates listed at the time of survey)

Looking at 2025 results, the summer peak was ¥12,000 in August; September dipped to ¥10,400, and rates then rose step by step as autumn deepened, to ¥11,000 in October and ¥12,000 in November. November was 15.0% higher than September, making the month when foliage and leisure travel overlap the effective autumn peak. The three-month autumn average of ¥11,100 was slightly below the two-month summer average of ¥11,300 (-1.5%), but it was 8.7% above the ¥10,200 of autumn 2024, so year-over-year growth was larger in autumn than in summer.

Turning to 2026, the summer (Jul–Aug) average was ¥10,800, 4.2% below the previous summer, while September was ¥11,000, 4.9% above the same month a year earlier, turning positive. The drop from August to September was also only 5.1%, smaller than the same drop in 2025 (-13.2%). October and November, still in progress, are estimates based on rates listed at the time of survey and cannot be compared like-for-like with last year’s actuals, but at least as of September, a shift from “below last year in summer, above last year in autumn” is visible in the national average.

47-Prefecture ADR List — September 2026 Estimated Settled ADR, YoY Change, and 2025 Autumn/Summer Averages

Below is the core list of this article. For each prefecture it shows the estimated settled ADR (median) for September 2026, the same figure for September 2025, the YoY change, the 2025 autumn (Sep–Nov) and summer (Jul–Aug) averages, how much higher autumn was than summer (autumn/summer), and the number of properties covered in September 2026. Amounts are rounded to the nearest ¥100. Prefectures are sorted by September 2026 ADR, highest first.

Source: MetroEngines Research; compiled by HotelBank Editorial Team (prefecture ADR is the median of the estimated settled ADR of properties covered. Properties covered totaled 17,136 in Sep 2026 and 16,647 in Sep 2025. Amounts rounded to the nearest ¥100)

The top of the list is Kyoto at ¥14,200, followed by Kanagawa, Oita and Tokyo at ¥13,700, with the Tokyo area, Kyoto and the hot-spring prefecture of Oita lined up at around ¥14,000. The YoY ranking looks different, however: 44 of the 47 prefectures were up, and the median YoY change was +5.7%. The standout gain was Aichi at +45.9% (¥8,500 → ¥12,400), reflecting the overlap of the second half of September with the 20th Asian Games (Aichi-Nagoya), held from September 19 to October 4. Aomori’s +25.7% also appears to reflect the pre-session events of the 80th National Sports Festival (“Ao no Kirameki Aomori Kokuspo”), held September 3–13 (the main session runs October 10–20).

By contrast, Osaka fell sharply, by 32.4% (¥13,800 → ¥9,300). September 2025 was the month when demand concentrated toward the close of Expo 2025 Osaka, Kansai, so the YoY comparison reflects the payback from that. Osaka was at ¥9,000 in September 2024, before the Expo, so it is closer to reality to read September 2026 as having returned to roughly the level of two years ago. How to read Osaka by segment is covered in detail in Osaka Sep 2026 Settled ADR: Business −34.0%, City −21.8% vs Expo Year.

Source: MetroEngines Research; compiled by HotelBank Editorial Team (YoY change in median estimated settled ADR, Sep 2026, 47 prefectures)

Prefectures Where Autumn Rates Beat Summer, and Where They Fall Short — 15 Prefectures Higher in Autumn in 2025

Reading the “autumn/summer” column of the list on its own makes regional differences in autumn rates clear. In 2025, the autumn (Sep–Nov) average exceeded the summer (Jul–Aug) average in 15 of the 47 prefectures; although the national weighted average was nearly even at -1.5%, the range across prefectures runs from +37% to −20%.

Source: MetroEngines Research; compiled by HotelBank Editorial Team (2025 autumn average (Sep–Nov) / summer average (Jul–Aug) − 1; top 8 and bottom 8 prefectures)

Kyoto leads the autumn-high group, with an autumn average of ¥19,400, 37.0% above its summer average of ¥14,100. The rise in November, during the foliage season, to ¥24,800 is the key driver. Tokyo, with an autumn average of ¥15,400 (+16.9% vs summer), is a textbook example of the urban type where autumn is higher. Nara (+12.7%), Ishikawa (+10.0%) and Shiga (+9.9%) also rank high in the autumn-high group, and can be grouped as regions where demand from cultural tourism, autumn foliage and the leisure season is reflected in rates.

On the other hand, the prefectures where autumn falls below summer are mainly summer-retreat and beach resort areas. Hokkaido’s autumn average was ¥9,900 against a summer average of ¥12,400 (-20.2%), and Okinawa also fell from ¥13,500 in summer to ¥10,800 in autumn (-20.4%), the figures showing a structure in which autumn cannot sustain the summer peak. Shizuoka, Yamanashi, Niigata and other prefectures with large summer-retreat and beach demand also see lower rates in autumn. In these areas autumn is really “the trough before the winter peak (skiing and the year-end holidays),” and judging autumn rates by the same yardstick as summer means a run of months in which occupancy holds up but rates do not grow. Okinawa’s occupancy itself is covered separately in Hotel Occupancy Sep 2026: Okinawa 86.7%, Osaka 80.4%, Kanagawa 84.2%.

To sum up, autumn rates follow two patterns. One is the urban/foliage type, which bottoms in September and rises through October and November. The other is the resort type, which peaks in August and trends down in autumn. The national figure of “autumn roughly level with summer” is merely the result of these two patterns cancelling each other out; in practice, the sensible order is to check in the list which type your own prefecture belongs to before designing autumn pricing. A breakdown classifying each prefecture by which autumn month its rates peak in (September, October, November or flat) is provided in Japan Autumn ADR 2026: 20 Prefectures Peak in Nov, Kyoto +81.8%.

How to Use Past-Rate Time Series — Steps for Checking Competitor and Area Rates

Finally, here are the steps operators and revenue managers can follow when using past hotel rates in practice, expressed as combinations of the sources covered in this article.

Source: HotelBank Editorial Team

The basic division of roles is: public statistics for “volume,” REIT disclosures for “an actuals reference point,” and OTA listed-price time series for “rates across the whole market.” For a closer look by segment, Japan Business Hotel ADR by Prefecture, Sep 2026, which focuses on business hotels, is the companion piece to this article. For an example of reading municipal-level rate tiers from an investment perspective, see Nagano Hotel Investment Map 2026.

Summary — National September ADR at ¥11,000, +4.9%; Read Autumn Rates by Two Patterns

The ways to research past hotel rates divide into public statistics (volume and occupancy, but rates are not published), the CPI for accommodation (a national index), monthly REIT disclosures (actuals for their own properties) and time series of OTA listed prices (estimated ADR across the whole market), each with different granularity and limits. According to MetroEngines Research, the national weighted average ADR for September 2026 was ¥11,000, up 4.9% YoY, turning positive from -4.2% in summer (Jul–Aug). Based on 2025 results, the autumn (Sep–Nov) average was ¥11,100, 1.5% below summer and 8.7% above the previous autumn. Autumn rates exceed summer in 15 prefectures of the urban/foliage type, centered on Kyoto and Tokyo, while resort-type prefectures such as Hokkaido and Okinawa fall in autumn. Checking in the list which type your own prefecture belongs to is the starting point for designing autumn pricing.

Frequently Asked Questions

Q. Is there a free, official way to look up past hotel rates?
A. No public statistic publishes rates themselves. The Japan Tourism Agency’s Overnight Travel Statistics Survey goes only as far as guest numbers and room occupancy, and the Ministry of Internal Affairs and Communications’ Consumer Price Index only as far as an accommodation price index. For rates as a price level, you need to refer to the monthly disclosures of listed hotel REITs or to estimates based on time series of OTA listed prices.

Q. Why does the ADR in this list differ from my property’s actual room rate?
A. The ADR in this article is the prefecture median of an estimated settled rate (tax-exclusive equivalent), calculated by applying segment-specific adjustment factors to the lowest-plan level on OTAs. It is an estimate that does not include direct, corporate-contract or group sales.

Q. Are autumn rates higher than summer every year?
A. It depends on the prefecture. In 2025, the autumn average exceeded the summer average in 15 prefectures, while in summer-retreat and beach resort areas such as Hokkaido and Okinawa autumn was lower; the national average was roughly level, at 1.5% below summer.

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