Climate Insights for Anan

Anan Shi, Tokushima-ken, Japan

Hottest
August
28°C peak
Coldest
February
7°C low
Wettest
October
306mm rain
Best to Visit
November
Mild temps & low rain

Climate Overview

The climate in Anan is temperate. The average annual temperature is 18°C and approximately 1943mm 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, March, when temperatures can drop to 7°C.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 11° Average: 9° Min: 7° Feb Max: 11° Average: 9° Min: 7° Mar Max: 13° Average: 11° Min: 9° Apr Max: 16° Average: 15° Min: 13° May Max: 20° Average: 19° Min: 18° Jun Max: 23° Average: 22° Min: 21° Jul Max: 26° Average: 26° Min: 25° Aug Max: 28° Average: 27° Min: 27° Sep Max: 26° Average: 25° Min: 24° Oct Max: 22° Average: 21° Min: 19° Nov Max: 18° Average: 16° Min: 14° Dec Max: 13° Average: 11° Min: 10°
Max
Average
Min

Temperatures in Anan vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 27°C. February is the coolest month, with minimum temperatures around 7°C and an average of 9°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 350mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 79mm Snow: 1mm Feb Precipitation: 84mm Snow: 0mm Mar Precipitation: 120mm Snow: 0mm Apr Precipitation: 131mm Snow: 0mm May Precipitation: 159mm Snow: 0mm Jun Precipitation: 265mm Snow: 0mm Jul Precipitation: 247mm Snow: 0mm Aug Precipitation: 116mm Snow: 0mm Sep Precipitation: 274mm Snow: 0mm Oct Precipitation: 306mm Snow: 0mm Nov Precipitation: 72mm Snow: 0mm Dec Precipitation: 88mm Snow: 0mm
Precipitation
Snow

Anan is a fairly wet location, receiving approximately 1943mm of precipitation annually, which averages out to around 162mm per month. The wettest month is October, averaging 306mm of rainfall. September and June also tend to see above-average precipitation. The driest month is November, with just 72mm. That's 234mm less than October, 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 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 7km/h Feb Wind Speed: 7km/h Mar Wind Speed: 6km/h Apr Wind Speed: 6km/h May Wind Speed: 5km/h Jun Wind Speed: 5km/h Jul Wind Speed: 5km/h Aug Wind Speed: 5km/h Sep Wind Speed: 6km/h Oct Wind Speed: 6km/h Nov Wind Speed: 6km/h Dec Wind Speed: 7km/h
Wind Speed

Anan is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/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 7km/h in winter, 6km/h in spring, 5km/h in summer, 6km/h in autumn.

Seasons

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

93 days until Autumn

It is currently summer in Anan, which began on June 21, 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 7°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

Spring

Temperatures range from 9 to 20°C. Rainfall is heavy, totalling around 410mm across the season with a monthly average of 137mm. Winds are generally light, averaging 6km/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 629mm across the season with a monthly average of 210mm. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 14 to 26°C. Rainfall is heavy, totalling around 653mm across the season with a monthly average of 218mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 7 to 13°C. Precipitation is moderate at around 251mm for the season, averaging 84mm per month. Winds are generally light, averaging 7km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan
Feb
Mar 11°
Apr 15°
May 19°
Jun 22°
Jul 26°
Aug 27°
Sep 25°
Oct 21°
Nov 16°
Dec 11°

The best time to visit Anan is during November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 72mm per month. By contrast, August can be uncomfortably hot with highs reaching 28°C, while February is the coldest period with lows dropping to 7°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

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
7 °C
11 °C
7 km/h
79 mm
1 cm
Feb
7 °C
11 °C
7 km/h
84 mm
0 cm
Mar
9 °C
13 °C
6 km/h
120 mm
0 cm
Apr
13 °C
16 °C
6 km/h
131 mm
0 cm
May
18 °C
20 °C
5 km/h
159 mm
0 cm
Jun Current
21 °C
23 °C
5 km/h
265 mm
0 cm
Jul
25 °C
26 °C
5 km/h
247 mm
0 cm
Aug
27 °C
28 °C
5 km/h
116 mm
0 cm
Sep
24 °C
26 °C
6 km/h
274 mm
0 cm
Oct
19 °C
22 °C
6 km/h
306 mm
0 cm
Nov
14 °C
18 °C
6 km/h
72 mm
0 cm
Dec
10 °C
13 °C
7 km/h
88 mm
0 cm
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