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Trip planning calendar

Period: observations for 1996–2025 (30 years)

A calendar of past observations to help you plan trips, outings, and outdoor events. For each month and station, it shows the dry-day rate, the share of consecutive dry days, and the share of windy days.

The "dry-day rate" is the share of years in which a given day had no precipitation (rain or snow) of 1 mm or more (daily rainfall under 1 mm, smoothed over the 4 days before and after).

These are statistics compiled from observations for 1996–2025 (30 years), not a weather forecast for any particular day. For the latest forecasts, see the JMA website.

This time of year at a glance

Values are monthly averages of observations for 1996–2025 (30 years). Follow a month name to its monthly page, or a station name to that station's page.

When to travel calendar

A 12-month calendar that overlays the pattern of holidays and long weekends with the monthly comfort levels. Use it for early research when your dates are not yet set.

When to travel calendar

Dry-day rate by month (range across Japan)

Jan14.8–91.5%Feb21.9–86.8%Mar35.6–80.7%Apr52.1–76.1%May52.5–76.8%Jun39.5–74.9%Jul41.0–76.4%Aug44.4–81.4%Sep48.4–74.4%Oct44.8–82.6%Nov29.7–83.2%Dec16.5–89.4%

The range from the station with the lowest monthly average dry-day rate in Japan to the station with the highest. A national average would cancel out the opposite seasonal swings on the Pacific and Sea of Japan sides, so the range and the median are the reliable way to read it. The breakdown by station is on each monthly page.

Table of values by month
MonthLowest stationMedianHighest station
January 14.8% (Sumon) 72.9% 91.5% (Maebashi)
February 21.9% (Hijiori) 68.6% 86.8% (Maebashi)
March 35.6% (Sumon) 65.6% 80.7% (Obihiro)
April 52.1% (Sumon) 66.9% 76.1% (Cape Soya)
May 52.5% (Naze) 67.5% 76.8% (Cape Saigo)
June 39.5% (Yakushima Island) 61.1% 74.9% (Otaru)
July 41.0% (Nasu Highlands) 62.0% 76.4% (Okinoerabu)
August 44.4% (Nasu Highlands) 66.3% 81.4% (Tamano)
September 48.4% (Washikura) 62.3% 74.4% (Kukokitamachi)
October 44.8% (Otoineppu) 68.0% 82.6% (Kukokitamachi)
November 29.7% (Otoineppu) 72.2% 83.2% (Yorii)
December 16.5% (Hijiori) 72.3% 89.4% (Maebashi)

The figure next to each month is the national median for that month.

Comfort by month (major stations)

Observations of dry-day rate, sunshine, wind, and temperature for 1996–2025 (30 years), rated on 5 levels for each month. The values behind the ratings are on each monthly page and each station's page.

The horizontal axis is the month (January–December). "Comfortable months" at the end of each row is the number of months rated "Comfortable" or "Good." The ratings are also in the table below. Use them as a guide based on past observations.

Table of ratings (12 major stations × 12 months)
StationJanFebMarAprMayJunJulAugSepOctNovDec
Sapporo HarshHarshHarshGoodComfortableComfortableComfortableComfortableComfortableGoodHarshHarsh
Sendai HarshToughFairComfortableComfortableComfortableGoodFairGoodComfortableGoodTough
Niigata HarshHarshToughComfortableComfortableComfortableFairFairComfortableGoodFairHarsh
Kanazawa HarshHarshFairComfortableComfortableComfortableFairToughGoodComfortableFairHarsh
Tokyo GoodGoodComfortableComfortableComfortableGoodToughToughFairComfortableComfortableGood
Nagoya FairGoodComfortableComfortableComfortableGoodToughHarshFairComfortableComfortableGood
Osaka FairFairComfortableComfortableComfortableGoodToughHarshFairComfortableComfortableGood
Hiroshima FairFairComfortableComfortableComfortableGoodToughHarshFairComfortableComfortableGood
Takamatsu FairFairComfortableComfortableComfortableGoodToughHarshFairComfortableComfortableGood
Fukuoka ToughFairGoodComfortableComfortableGoodToughHarshFairComfortableComfortableFair
Kagoshima GoodGoodComfortableComfortableComfortableFairHarshHarshFairComfortableComfortableGood
Naha GoodGoodGoodGoodFairHarshHarshHarshHarshFairGoodGood

Typhoon approaches

For summer and fall plans, see the records of typhoon approaches by region too. Confirmed records since 1951 are compiled into calendars by date, and a simulator lets you look up past typhoons by date range.

Typhoon approach calendar

Cherry blossom flowering and full bloom

For spring plans, see the calendar of cherry blossom flowering and full bloom dates. It shows the median for each station and the share of years in which the trees had flowered by each date.

Cherry blossom calendar

See also

Each station's page has a 12-month dry-day rate calendar for that station and a monthly table for multi-night stays. You can find stations from today's national rankings.