The muggier period of the year lasts for 3. The month with the most muggy days in Tokyo is August , with The least muggy day of the year is February 13 , when muggy conditions are essentially unheard of. This section discusses the wide-area hourly average wind vector speed and direction at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed in Tokyo experiences mild seasonal variation over the course of the year. The windier part of the year lasts for 4. The windiest month of the year in Tokyo is March , with an average hourly wind speed of 9. The calmer time of year lasts for 7. The calmest month of the year in Tokyo is July , with an average hourly wind speed of 7. The wind is most often from the south for 4. The wind is most often from the east for 2.
The wind is most often from the north for 7. Tokyo is located near a large body of water e. This section reports on the wide-area average surface temperature of that water. The average water temperature experiences significant seasonal variation over the course of the year. The time of year with warmer water lasts for 2. The time of year with cooler water lasts for 4. To characterize how pleasant the weather is in Tokyo throughout the year, we compute two travel scores.
Based on this score, the best times of year to visit Tokyo for general outdoor tourist activities are from mid May to mid June and from early September to late October , with a peak score in the first week of October. Based on this score, the best time of year to visit Tokyo for hot-weather activities is from late July to early September , with a peak score in the third week of August. For each hour between AM and PM of each day in the analysis period to , independent scores are computed for perceived temperature, cloud cover, and total precipitation.
Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score , which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0. The growing season in Tokyo typically lasts for 11 months days , from around February 12 to around December 30 , rarely starting after March 5 , or ending before December Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature.
Based on growing degree days alone, the first spring blooms in Tokyo should appear around March 24 , only rarely appearing before March 11 or after April 6. This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents.
Shortwave radiation includes visible light and ultraviolet radiation. The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year. The brighter period of the year lasts for 4.
The brightest month of the year in Tokyo is May , with an average of 5. The darker period of the year lasts for 3. The darkest month of the year in Tokyo is December , with an average of 2. For the purposes of this report, the geographical coordinates of Tokyo are The topography within 2 miles of Tokyo contains only modest variations in elevation, with a maximum elevation change of feet and an average elevation above sea level of feet.
Within 10 miles also contains only modest variations in elevation feet. Within 50 miles contains only modest variations in elevation 6, feet. This report illustrates the typical weather in Tokyo, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, to December 31, There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Tokyo. For each station, the records are corrected for the elevation difference between that station and Tokyo according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Tokyo is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Tokyo and a given station. To get a sense of how much these sources agree with each other, you can view a comparison of Tokyo and the stations that contribute to our estimates of its temperature history and climate.
Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data. Single Account. View for free. Show source. Show detailed source information? Register for free Already a member? Log in. More information. Supplementary notes. Other statistics on the topic. Climate and Weather Average annual rainfall Japan Climate and Weather Average annual temperature Tokyo Climate and Weather Annual snowfall in Sapporo Climate and Weather Average monthly temperature Tokyo Catharina Klein.
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Profit from additional features by authenticating your Admin account. Then you will be able to mark statistics as favourites and use personal statistics alerts. Save statistic in. XLS format. PNG format. PDF format. In any case, night frosts are rare and usually light. In other periods, there's bad weather, with wind and rain, and sometimes especially in June and July , nights are a bit cool. August is the hottest month, both because of the thermal inertia of the sea and because of the lower frequency of periods of bad weather.
Here are the average temperatures.
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