Climate Insights for Amagi

Ōshima-gun, Kagoshima-ken, Japan

Hottest
August
29°C peak
Coldest
February
16°C low
Wettest
June
373mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Amagi is warm and mild. The average annual temperature is 23°C and approximately 2090mm of precipitation falls per year. Amagi receives a notable amount of rainfall throughout the year, including during its driest month. Amagi 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 February, January, March, when temperatures can drop to 16°C.

Temperature

0° 5° 10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 18° Average: 17° Min: 16° Feb Max: 18° Average: 17° Min: 16° Mar Max: 20° Average: 19° Min: 18° Apr Max: 22° Average: 21° Min: 20° May Max: 24° Average: 23° Min: 22° Jun Max: 26° Average: 26° Min: 25° Jul Max: 29° Average: 28° Min: 27° Aug Max: 29° Average: 28° Min: 28° Sep Max: 28° Average: 28° Min: 27° Oct Max: 26° Average: 26° Min: 25° Nov Max: 23° Average: 22° Min: 22° Dec Max: 20° Average: 19° Min: 18°
Max
Average
Min

Amagi sees moderate temperature variation throughout the year, ranging from 16°C to 29°C. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 28°C. February is the coolest month, with minimum temperatures around 16°C and an average of 17°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 4°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 125mm Feb Precipitation: 116mm Mar Precipitation: 165mm Apr Precipitation: 143mm May Precipitation: 230mm Jun Precipitation: 373mm Jul Precipitation: 175mm Aug Precipitation: 148mm Sep Precipitation: 193mm Oct Precipitation: 138mm Nov Precipitation: 164mm Dec Precipitation: 119mm
Precipitation

Amagi is a very wet location, receiving approximately 2090mm of precipitation annually, which averages out to around 174mm per month. The wettest month is June, averaging 373mm of rainfall. May and September also tend to see above-average precipitation. The driest month is February, with just 116mm. That's 258mm 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 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 27km/h Feb Wind Speed: 28km/h Mar Wind Speed: 25km/h Apr Wind Speed: 23km/h May Wind Speed: 22km/h Jun Wind Speed: 22km/h Jul Wind Speed: 24km/h Aug Wind Speed: 23km/h Sep Wind Speed: 23km/h Oct Wind Speed: 26km/h Nov Wind Speed: 27km/h Dec Wind Speed: 28km/h
Wind Speed

Amagi is moderately windy, with an average annual wind speed of 25km/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 28km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 22km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 6km/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 28km/h in winter, 23km/h in spring, 23km/h in summer, 25km/h in autumn.

Seasons

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

87 days until Winter

It is currently autumn in Amagi, which began on September 23, 2026. Amagi 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 February near 16°C. Winter is next, beginning on December 21, 2026 (87 days from now).

Spring

Temperatures range from 18 to 24°C. Rainfall is heavy, totalling around 539mm across the season with a monthly average of 180mm. Winds are moderate at around 23km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 696mm across the season with a monthly average of 232mm. Winds are moderate at around 23km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 22 to 28°C. Rainfall is heavy, totalling around 495mm across the season with a monthly average of 165mm. Winds are strong, averaging 25km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 16 to 20°C. Rainfall is heavy, totalling around 360mm across the season with a monthly average of 120mm. Winds are strong, averaging 28km/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 Amagi 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
16 °C
18 °C
27 km/h
125 mm
0 cm
Feb
16 °C
18 °C
28 km/h
116 mm
0 cm
Mar
18 °C
20 °C
25 km/h
165 mm
0 cm
Apr
20 °C
22 °C
23 km/h
143 mm
0 cm
May
22 °C
24 °C
22 km/h
230 mm
0 cm
Jun
25 °C
26 °C
22 km/h
373 mm
0 cm
Jul
27 °C
29 °C
24 km/h
175 mm
0 cm
Aug
28 °C
29 °C
23 km/h
148 mm
0 cm
Sep Current
27 °C
28 °C
23 km/h
193 mm
0 cm
Oct
25 °C
26 °C
26 km/h
138 mm
0 cm
Nov
22 °C
23 °C
27 km/h
164 mm
0 cm
Dec
18 °C
20 °C
28 km/h
119 mm
0 cm
Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)