Climate Insights for Kudamatsu

Kudamatsu Shi, Yamaguchi, Japan

Hottest
August
30°C peak
Coldest
February
5°C low
Wettest
July
276mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Kudamatsu is temperate. The average annual temperature is 17°C and approximately 1830mm of precipitation falls per year. Kudamatsu receives a notable amount of rainfall throughout the year, including during its driest month. Kudamatsu 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 5°C. Light snow can occur between January and February.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 9° Average: 7° Min: 5° Feb Max: 9° Average: 7° Min: 5° Mar Max: 13° Average: 10° Min: 8° Apr Max: 17° Average: 14° Min: 12° May Max: 21° Average: 18° Min: 16° Jun Max: 24° Average: 22° Min: 20° Jul Max: 28° Average: 26° Min: 25° Aug Max: 30° Average: 28° Min: 26° Sep Max: 27° Average: 25° Min: 23° Oct Max: 22° Average: 20° Min: 17° Nov Max: 17° Average: 14° Min: 12° Dec Max: 11° Average: 9° Min: 6°
Max
Average
Min

Temperatures in Kudamatsu vary considerably across the year, with a 25°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 30°C and the mean temperature sits around 28°C. February is the coolest month, with minimum temperatures around 5°C and an average of 7°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between November and December, with a 6°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: 66mm Snow: 4mm Feb Precipitation: 86mm Snow: 2mm Mar Precipitation: 130mm Snow: 0mm Apr Precipitation: 164mm Snow: 0mm May Precipitation: 188mm Snow: 0mm Jun Precipitation: 265mm Snow: 0mm Jul Precipitation: 276mm Snow: 0mm Aug Precipitation: 195mm Snow: 0mm Sep Precipitation: 223mm Snow: 0mm Oct Precipitation: 105mm Snow: 0mm Nov Precipitation: 67mm Snow: 0mm Dec Precipitation: 65mm Snow: 1mm
Precipitation
Snow

Kudamatsu is a fairly wet location, receiving approximately 1830mm of precipitation annually, which averages out to around 153mm per month. The wettest month is July, averaging 276mm of rainfall. June and September also tend to see above-average precipitation. The driest month is December, with just 65mm. That's 210mm less than July, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Light snowfall can occur between January and February, totalling around 7cm annually. January is the snowiest month with approximately 4cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 16km/h Feb Wind Speed: 16km/h Mar Wind Speed: 14km/h Apr Wind Speed: 13km/h May Wind Speed: 12km/h Jun Wind Speed: 11km/h Jul Wind Speed: 11km/h Aug Wind Speed: 12km/h Sep Wind Speed: 12km/h Oct Wind Speed: 14km/h Nov Wind Speed: 14km/h Dec Wind Speed: 17km/h
Wind Speed

Kudamatsu is mildly breezy, with an average annual wind speed of 13km/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 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/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 16km/h in winter, 13km/h in spring, 11km/h in summer, 13km/h in autumn.

Seasons

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

3 days until Autumn

It is currently summer in Kudamatsu, which began on June 21, 2026. Kudamatsu 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 30°C, while the coldest stretch bottoms out in February near 5°C. Autumn is next, beginning on September 23, 2026 (3 days from now).

Spring

Temperatures range from 8 to 21°C. Rainfall is heavy, totalling around 482mm across the season with a monthly average of 161mm. Winds are generally light, averaging 13km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 20 to 30°C. Rainfall is heavy, totalling around 736mm across the season with a monthly average of 245mm. Winds are generally light, averaging 11km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 12 to 27°C. Rainfall is heavy, totalling around 395mm across the season with a monthly average of 132mm. Winds are generally light, averaging 13km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 5 to 11°C. Precipitation is moderate at around 218mm for the season, averaging 73mm per month. Expect around 7cm of snow accumulation during this period. Winds are moderate at around 16km/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 Kudamatsu 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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
5 °C
9 °C
16 km/h
66 mm
4 cm
Feb
5 °C
9 °C
16 km/h
86 mm
2 cm
Mar
8 °C
13 °C
14 km/h
130 mm
0 cm
Apr
12 °C
17 °C
13 km/h
164 mm
0 cm
May
16 °C
21 °C
12 km/h
188 mm
0 cm
Jun
20 °C
24 °C
11 km/h
265 mm
0 cm
Jul
25 °C
28 °C
11 km/h
276 mm
0 cm
Aug
26 °C
30 °C
12 km/h
195 mm
0 cm
Sep Current
23 °C
27 °C
12 km/h
223 mm
0 cm
Oct
17 °C
22 °C
14 km/h
105 mm
0 cm
Nov
12 °C
17 °C
14 km/h
67 mm
0 cm
Dec
6 °C
11 °C
17 km/h
65 mm
1 cm
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Metric (°C, km/h)