Climate Insights for Anan

Anan Shi, Tokushima-ken, Japan

Hottest
August
28°C peak
Coldest
February
8°C low
Wettest
June
280mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Anan is warm and mild. The average annual temperature is 18°C and approximately 1961mm of precipitation falls per year. Anan receives a notable amount of rainfall throughout the year, including during its driest month. Anan 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, December, when temperatures can drop to 8°C.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 12° Average: 10° Min: 8° Feb Max: 12° Average: 10° Min: 8° Mar Max: 14° Average: 13° Min: 11° Apr Max: 17° Average: 16° Min: 14° May Max: 20° Average: 19° Min: 18° Jun Max: 23° Average: 22° Min: 21° Jul Max: 27° Average: 26° Min: 25° Aug Max: 28° Average: 28° Min: 27° Sep Max: 27° Average: 26° Min: 25° Oct Max: 23° Average: 21° Min: 20° Nov Max: 19° Average: 17° Min: 16° Dec Max: 14° Average: 12° Min: 11°
Max
Average
Min

Anan sees moderate temperature variation throughout the year, ranging from 8°C to 28°C. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 28°C. February is the coolest month, with minimum temperatures around 8°C and an average of 10°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between November and December, with a 5°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: 78mm Feb Precipitation: 80mm Mar Precipitation: 139mm Apr Precipitation: 160mm May Precipitation: 189mm Jun Precipitation: 280mm Jul Precipitation: 211mm Aug Precipitation: 187mm Sep Precipitation: 238mm Oct Precipitation: 216mm Nov Precipitation: 107mm Dec Precipitation: 75mm
Precipitation

Anan is a fairly wet location, receiving approximately 1961mm of precipitation annually, which averages out to around 163mm per month. The wettest month is June, averaging 280mm of rainfall. September and October also tend to see above-average precipitation. The driest month is December, with just 75mm. That's 205mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) 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: 36km/h Mar Wind Speed: 35km/h Apr Wind Speed: 34km/h May Wind Speed: 29km/h Jun Wind Speed: 27km/h Jul Wind Speed: 25km/h Aug Wind Speed: 26km/h Sep Wind Speed: 31km/h Oct Wind Speed: 35km/h Nov Wind Speed: 34km/h Dec Wind Speed: 34km/h
Wind Speed

Anan 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 February, averaging 36km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in July, with average winds dropping to 25km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 11km/h gap 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 35km/h in winter, 32km/h in spring, 26km/h in summer, 33km/h in autumn.

Seasons

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

89 days until Summer

It is currently spring in Anan, which began on March 20, 2026. Anan 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 28°C, while the coldest stretch bottoms out in February near 8°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 11 to 20°C. Rainfall is heavy, totalling around 489mm across the season with a monthly average of 163mm. Winds are strong, averaging 32km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 21 to 28°C. Rainfall is heavy, totalling around 678mm across the season with a monthly average of 226mm. Winds are strong, averaging 26km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 16 to 27°C. Rainfall is heavy, totalling around 561mm across the season with a monthly average of 187mm. Winds are strong, averaging 33km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 8 to 14°C. Precipitation is moderate at around 233mm for the season, averaging 78mm per month. Winds are strong, averaging 35km/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 Anan 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
8 °C
12 °C
35 km/h
78 mm
0 cm
Feb
8 °C
12 °C
36 km/h
80 mm
0 cm
Mar Current
11 °C
14 °C
35 km/h
139 mm
0 cm
Apr
14 °C
17 °C
34 km/h
160 mm
0 cm
May
18 °C
20 °C
29 km/h
189 mm
0 cm
Jun
21 °C
23 °C
27 km/h
280 mm
0 cm
Jul
25 °C
27 °C
25 km/h
211 mm
0 cm
Aug
27 °C
28 °C
26 km/h
187 mm
0 cm
Sep
25 °C
27 °C
31 km/h
238 mm
0 cm
Oct
20 °C
23 °C
35 km/h
216 mm
0 cm
Nov
16 °C
19 °C
34 km/h
107 mm
0 cm
Dec
11 °C
14 °C
34 km/h
75 mm
0 cm
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Metric (°C, km/h)