Climate Insights for Mihara

Mihara Shi, Hiroshima-ken, Japan

Hottest
August
33°C peak
Coldest
January
1°C low
Wettest
July
247mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Mihara is temperate. The average annual temperature is 16°C and approximately 1467mm of precipitation falls per year. Mihara receives a notable amount of rainfall throughout the year, including during its driest month. Mihara 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 January, February, December, when temperatures can drop to 1°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: 5° Min: 1° Feb Max: 10° Average: 5° Min: 1° Mar Max: 15° Average: 10° Min: 5° Apr Max: 20° Average: 15° Min: 10° May Max: 24° Average: 19° Min: 15° Jun Max: 27° Average: 23° Min: 19° Jul Max: 31° Average: 27° Min: 24° Aug Max: 33° Average: 28° Min: 25° Sep Max: 28° Average: 25° Min: 21° Oct Max: 23° Average: 18° Min: 14° Nov Max: 17° Average: 12° Min: 8° Dec Max: 11° Average: 6° Min: 3°
Max
Average
Min

Temperatures in Mihara vary considerably across the year, with a 32°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 33°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 1°C and an average of 5°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 45mm Snow: 3mm Feb Precipitation: 58mm Snow: 4mm Mar Precipitation: 98mm Snow: 1mm Apr Precipitation: 121mm Snow: 0mm May Precipitation: 131mm Snow: 0mm Jun Precipitation: 210mm Snow: 0mm Jul Precipitation: 247mm Snow: 0mm Aug Precipitation: 176mm Snow: 0mm Sep Precipitation: 178mm Snow: 0mm Oct Precipitation: 113mm Snow: 0mm Nov Precipitation: 47mm Snow: 0mm Dec Precipitation: 43mm Snow: 1mm
Precipitation
Snow

Mihara is a fairly wet location, receiving approximately 1467mm of precipitation annually, which averages out to around 122mm per month. The wettest month is July, averaging 247mm of rainfall. June and September also tend to see above-average precipitation. The driest month is December, with just 43mm. That's 204mm less than July, 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. February is the snowiest month with approximately 4cm.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 10km/h Feb Wind Speed: 10km/h Mar Wind Speed: 9km/h Apr Wind Speed: 9km/h May Wind Speed: 8km/h Jun Wind Speed: 7km/h Jul Wind Speed: 7km/h Aug Wind Speed: 8km/h Sep Wind Speed: 8km/h Oct Wind Speed: 8km/h Nov Wind Speed: 8km/h Dec Wind Speed: 9km/h
Wind Speed

Mihara is relatively calm, with an average annual wind speed of 8km/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 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/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 9km/h in winter, 9km/h in spring, 7km/h in summer, 8km/h in autumn.

Seasons

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

7 days until Autumn

It is currently summer in Mihara, which began on June 21, 2026. Mihara 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 33°C, while the coldest stretch bottoms out in January near 1°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

Spring

Temperatures range from 5 to 24°C. Rainfall is heavy, totalling around 351mm across the season with a monthly average of 117mm. Winds are generally light, averaging 9km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 19 to 33°C. Rainfall is heavy, totalling around 633mm across the season with a monthly average of 211mm. Winds are generally light, averaging 7km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 8 to 28°C. Rainfall is heavy, totalling around 338mm across the season with a monthly average of 113mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 1 to 11°C. Rainfall is relatively light, with around 145mm over the season and a monthly average of 48mm. Expect around 8cm of snow accumulation during this period. Winds are generally light, averaging 9km/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 Mihara 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
1 °C
9 °C
10 km/h
45 mm
3 cm
Feb
1 °C
10 °C
10 km/h
58 mm
4 cm
Mar
5 °C
15 °C
9 km/h
98 mm
1 cm
Apr
10 °C
20 °C
9 km/h
121 mm
0 cm
May
15 °C
24 °C
8 km/h
131 mm
0 cm
Jun
19 °C
27 °C
7 km/h
210 mm
0 cm
Jul
24 °C
31 °C
7 km/h
247 mm
0 cm
Aug
25 °C
33 °C
8 km/h
176 mm
0 cm
Sep Current
21 °C
28 °C
8 km/h
178 mm
0 cm
Oct
14 °C
23 °C
8 km/h
113 mm
0 cm
Nov
8 °C
17 °C
8 km/h
47 mm
0 cm
Dec
3 °C
11 °C
9 km/h
43 mm
1 cm
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Metric (°C, km/h)