Climate Insights for Miyama

Miyama Shi, Fukuoka Prefecture, Japan

Hottest
August
32°C peak
Coldest
February
4°C low
Wettest
June
611mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Miyama is temperate. The average annual temperature is 17°C and approximately 2424mm of precipitation falls per year. Miyama receives a notable amount of rainfall throughout the year, including during its driest month. Miyama 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 4°C. Light snow can occur between January and February.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 9° Average: 7° Min: 4° Feb Max: 11° Average: 7° Min: 4° Mar Max: 15° Average: 11° Min: 7° Apr Max: 21° Average: 17° Min: 13° May Max: 25° Average: 20° Min: 16° Jun Max: 26° Average: 23° Min: 21° Jul Max: 30° Average: 27° Min: 24° Aug Max: 32° Average: 28° Min: 25° Sep Max: 28° Average: 25° Min: 23° Oct Max: 25° Average: 21° Min: 18° Nov Max: 18° Average: 14° Min: 10° Dec Max: 13° Average: 9° Min: 6°
Max
Average
Min

Temperatures in Miyama vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 32°C and the mean temperature sits around 28°C. February is the coolest month, with minimum temperatures around 4°C and an average of 7°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm 500mm 550mm 600mm 650mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 114mm Snow: 8mm Feb Precipitation: 111mm Snow: 2mm Mar Precipitation: 99mm Snow: 0mm Apr Precipitation: 219mm Snow: 0mm May Precipitation: 283mm Snow: 0mm Jun Precipitation: 611mm Snow: 0mm Jul Precipitation: 284mm Snow: 0mm Aug Precipitation: 51mm Snow: 0mm Sep Precipitation: 229mm Snow: 0mm Oct Precipitation: 177mm Snow: 0mm Nov Precipitation: 121mm Snow: 0mm Dec Precipitation: 126mm Snow: 0mm
Precipitation
Snow

Miyama is a very wet location, receiving approximately 2424mm of precipitation annually, which averages out to around 202mm per month. The wettest month is June, averaging 611mm of rainfall. July and May also tend to see above-average precipitation. The driest month is August, with just 51mm. That's 560mm less than June, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and February, totalling around 9cm annually. January is the snowiest month with approximately 8cm.

Wind

0km/h 5km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 3km/h Feb Wind Speed: 3km/h Mar Wind Speed: 2km/h Apr Wind Speed: 2km/h May Wind Speed: 2km/h Jun Wind Speed: 2km/h Jul Wind Speed: 2km/h Aug Wind Speed: 2km/h Sep Wind Speed: 2km/h Oct Wind Speed: 2km/h Nov Wind Speed: 2km/h Dec Wind Speed: 2km/h
Wind Speed

Miyama is relatively calm, with an average annual wind speed of 2km/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 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

Seasons

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

52 days until Autumn

It is currently summer in Miyama, which began on June 21, 2026. Miyama 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 32°C, while the coldest stretch bottoms out in February near 4°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

Spring

Temperatures range from 7 to 25°C. Rainfall is heavy, totalling around 600mm across the season with a monthly average of 200mm. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 21 to 32°C. Rainfall is heavy, totalling around 946mm across the season with a monthly average of 315mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 10 to 28°C. Rainfall is heavy, totalling around 527mm across the season with a monthly average of 176mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 4 to 13°C. Rainfall is heavy, totalling around 351mm across the season with a monthly average of 117mm. Expect around 9cm of snow accumulation during this period. Winds are generally light, averaging 3km/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 Miyama 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
4 °C
9 °C
3 km/h
114 mm
8 cm
Feb
4 °C
11 °C
3 km/h
111 mm
2 cm
Mar
7 °C
15 °C
2 km/h
99 mm
0 cm
Apr
13 °C
21 °C
2 km/h
219 mm
0 cm
May
16 °C
25 °C
2 km/h
283 mm
0 cm
Jun
21 °C
26 °C
2 km/h
611 mm
0 cm
Jul
24 °C
30 °C
2 km/h
284 mm
0 cm
Aug Current
25 °C
32 °C
2 km/h
51 mm
0 cm
Sep
23 °C
28 °C
2 km/h
229 mm
0 cm
Oct
18 °C
25 °C
2 km/h
177 mm
0 cm
Nov
10 °C
18 °C
2 km/h
121 mm
0 cm
Dec
6 °C
13 °C
2 km/h
126 mm
0 cm
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