Climate and Average Weather Year Round at Takamatsu Airport Japan

At Takamatsu Airport, the summers are oppressive, wet, short, hot, and mostly cloudy and the winters are very cold, mostly clear, and windy. Over the course of the year, the temperature typically varies from 34°F to 89°F and is rarely below 28°F or above 94°F.

Based on the tourism score, the best time of year to visit Takamatsu Airport for warm-weather activities is from late August to mid October.

The hot season lasts for 2.9 months, from June 22 to September 17, with an average daily high temperature above 80°F. The hottest month of the year at Takamatsu Airport is August, with an average high of 88°F and low of 74°F.

The cool season lasts for 3.4 months, from December 3 to March 17, with an average daily high temperature below 55°F. The coldest month of the year at Takamatsu Airport is January, with an average low of 35°F and high of 47°F.

At Takamatsu Airport, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year at Takamatsu Airport begins around September 16 and lasts for 6.4 months, ending around March 30.

The clearest month of the year at Takamatsu Airport is December, during which on average the sky is clear, mostly clear, or partly cloudy 76% of the time.

The cloudier part of the year begins around March 30 and lasts for 5.6 months, ending around September 16.

The cloudiest month of the year at Takamatsu Airport is June, during which on average the sky is overcast or mostly cloudy 68% of the time.

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A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Takamatsu Airport varies significantly throughout the year.

The wetter season lasts 6.0 months, from April 4 to October 3, with a greater than 34% chance of a given day being a wet day. The month with the most wet days at Takamatsu Airport is June, with an average of 13.9 days with at least 0.04 inches of precipitation.

The drier season lasts 6.0 months, from October 3 to April 4. The month with the fewest wet days at Takamatsu Airport is January, with an average of 4.9 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone at Takamatsu Airport is June, with an average of 13.9 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 53% on July 2.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Takamatsu Airport experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year at Takamatsu Airport. The month with the most rain at Takamatsu Airport is June, with an average rainfall of 8.1 inches.

The month with the least rain at Takamatsu Airport is January, with an average rainfall of 1.6 inches.

The length of the day at Takamatsu Airport varies significantly over the course of the year. In 2026, the shortest day is December 22, with 9 hours, 52 minutes of daylight; the longest day is June 21, with 14 hours, 27 minutes of daylight.

The earliest sunrise is at 4:51 AM on June 12, and the latest sunrise is 2 hours, 19 minutes later at 7:10 AM on January 7. The earliest sunset is at 4:53 PM on December 5, and the latest sunset is 2 hours, 26 minutes later at 7:19 PM on June 29.

Daylight saving time (DST) is not observed at Takamatsu Airport during 2026.

The figure below presents a compact representation of key lunar data for 2026. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Takamatsu Airport experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.7 months, from June 9 to October 1, during which time the comfort level is muggy, oppressive, or miserable at least 24% of the time. The month with the most muggy days at Takamatsu Airport is August, with 28.8 days that are muggy or worse.

The least muggy day of the year is February 9, 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 at Takamatsu Airport experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.1 months, from November 17 to April 20, with average wind speeds of more than 7.8 miles per hour. The windiest month of the year at Takamatsu Airport is January, with an average hourly wind speed of 9.7 miles per hour.

The calmer time of year lasts for 6.9 months, from April 20 to November 17. The calmest month of the year at Takamatsu Airport is June, with an average hourly wind speed of 5.9 miles per hour.

The predominant average hourly wind direction at Takamatsu Airport varies throughout the year.

The wind is most often from the north for 2.1 months, from February 11 to April 15 and for 2.5 months, from September 4 to November 19, with a peak percentage of 47% on October 10. The wind is most often from the south for 4.6 months, from April 15 to September 4, with a peak percentage of 39% on July 23. The wind is most often from the west for 2.7 months, from November 19 to February 11, with a peak percentage of 54% on January 1.

Takamatsu Airport is located near a large body of water (e.g., ocean, sea, or large lake). 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 2.7 months, from July 14 to October 5, with an average temperature above 76°F. The month of the year at Takamatsu Airport with the warmest water is August, with an average temperature of 80°F.

The time of year with cooler water lasts for 4.8 months, from December 13 to May 7, with an average temperature below 63°F. The month of the year at Takamatsu Airport with the coolest water is February, with an average temperature of 58°F.

To characterize how pleasant the weather is at Takamatsu Airport throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Takamatsu Airport for general outdoor tourist activities is from late August to mid October, with a peak score in the third week of September.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Takamatsu Airport for hot-weather activities is from late July to early September, with a peak score in the second week of August.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), 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 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season at Takamatsu Airport typically lasts for 9.2 months (283 days), from around March 12 to around December 20, rarely starting before February 22 or after April 1, and rarely ending before December 1 or after January 7.

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. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms at Takamatsu Airport should appear around March 29, only rarely appearing before March 17 or after April 9.

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 4.5 months, from April 12 to August 30, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest month of the year at Takamatsu Airport is May, with an average of 6.0 kWh.

The darker period of the year lasts for 3.0 months, from November 10 to February 9, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest month of the year at Takamatsu Airport is December, with an average of 2.7 kWh.

For the purposes of this report, the geographical coordinates of Takamatsu Airport are 34.214 deg latitude, 134.016 deg longitude, and 597 ft elevation.

The topography within 2 miles of Takamatsu Airport contains very significant variations in elevation, with a maximum elevation change of 896 feet and an average elevation above sea level of 513 feet. Within 10 miles contains very significant variations in elevation (3,435 feet). Within 50 miles also contains extreme variations in elevation (6,450 feet).

The area within 2 miles of Takamatsu Airport is covered by cropland (52%) and trees (43%), within 10 miles by trees (61%) and cropland (32%), and within 50 miles by trees (44%) and water (43%).