Climate Insights for Kumejima Airport

Shimajiri-gun, Okinawa, Japan

Hottest
August
29°C peak
Coldest
January
17°C low
Wettest
June
295mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Kumejima Airport is warm and mild. The average annual temperature is 24°C and approximately 2123mm of precipitation falls per year. Kumejima Airport receives a notable amount of rainfall throughout the year, including during its driest month. Kumejima Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, March, when temperatures can drop to 17°C.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 19° Average: 18° Min: 17° Feb Max: 20° Average: 19° Min: 17° Mar Max: 21° Average: 20° Min: 19° Apr Max: 23° Average: 22° Min: 21° May Max: 25° Average: 25° Min: 24° Jun Max: 28° Average: 27° Min: 26° Jul Max: 29° Average: 29° Min: 28° Aug Max: 29° Average: 29° Min: 28° Sep Max: 28° Average: 28° Min: 27° Oct Max: 27° Average: 26° Min: 25° Nov Max: 24° Average: 23° Min: 23° Dec Max: 21° Average: 20° Min: 19°
Max
Average
Min

Kumejima Airport sees moderate temperature variation throughout the year, ranging from 17°C to 29°C. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 17°C and an average of 18°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between November and December, with a 3°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 127mm Feb Precipitation: 105mm Mar Precipitation: 128mm Apr Precipitation: 189mm May Precipitation: 240mm Jun Precipitation: 295mm Jul Precipitation: 184mm Aug Precipitation: 248mm Sep Precipitation: 186mm Oct Precipitation: 145mm Nov Precipitation: 124mm Dec Precipitation: 152mm
Precipitation

Kumejima Airport is a very wet location, receiving approximately 2123mm of precipitation annually, which averages out to around 177mm per month. The wettest month is June, averaging 295mm of rainfall. August and May also tend to see above-average precipitation. The driest month is February, with just 105mm. That's 189mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h 30km/h 35km/h 40km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 35km/h Feb Wind Speed: 35km/h Mar Wind Speed: 33km/h Apr Wind Speed: 31km/h May Wind Speed: 29km/h Jun Wind Speed: 31km/h Jul Wind Speed: 30km/h Aug Wind Speed: 29km/h Sep Wind Speed: 30km/h Oct Wind Speed: 33km/h Nov Wind Speed: 34km/h Dec Wind Speed: 38km/h
Wind Speed

Kumejima Airport is very windy, with an average annual wind speed of 32km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 38km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in August, with average winds dropping to 29km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 9km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 36km/h in winter, 31km/h in spring, 30km/h in summer, 33km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

88 days until Summer

It is currently spring in Kumejima Airport, which began on March 20, 2026. Kumejima Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 29°C, while the coldest stretch bottoms out in January near 17°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

Spring

Temperatures range from 19 to 25°C. Rainfall is heavy, totalling around 557mm across the season with a monthly average of 186mm. Winds are strong, averaging 31km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 726mm across the season with a monthly average of 242mm. Winds are strong, averaging 30km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 23 to 28°C. Rainfall is heavy, totalling around 455mm across the season with a monthly average of 152mm. Winds are strong, averaging 33km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 17 to 21°C. Rainfall is heavy, totalling around 385mm across the season with a monthly average of 128mm. Winds are strong, averaging 36km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Kumejima Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
17 °C
19 °C
35 km/h
127 mm
0 cm
Feb
17 °C
20 °C
35 km/h
105 mm
0 cm
Mar Current
19 °C
21 °C
33 km/h
128 mm
0 cm
Apr
21 °C
23 °C
31 km/h
189 mm
0 cm
May
24 °C
25 °C
29 km/h
240 mm
0 cm
Jun
26 °C
28 °C
31 km/h
295 mm
0 cm
Jul
28 °C
29 °C
30 km/h
184 mm
0 cm
Aug
28 °C
29 °C
29 km/h
248 mm
0 cm
Sep
27 °C
28 °C
30 km/h
186 mm
0 cm
Oct
25 °C
27 °C
33 km/h
145 mm
0 cm
Nov
23 °C
24 °C
34 km/h
124 mm
0 cm
Dec
19 °C
21 °C
38 km/h
152 mm
0 cm
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Metric (°C, km/h)