Climate Insights for Oga

Oga Shi, Akita, Japan

Hottest
August
27°C peak
Coldest
January
2°C low
Wettest
December
251mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Oga is temperate. The average annual temperature is 13°C and approximately 1962mm of precipitation falls per year. Oga receives a notable amount of rainfall throughout the year, including during its driest month. Oga 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 2°C. Snowfall occurs from January to December, with around 154cm accumulating over the season.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 4° Average: 3° Min: 2° Feb Max: 5° Average: 3° Min: 2° Mar Max: 7° Average: 6° Min: 5° Apr Max: 11° Average: 10° Min: 9° May Max: 16° Average: 15° Min: 13° Jun Max: 20° Average: 19° Min: 18° Jul Max: 24° Average: 24° Min: 23° Aug Max: 27° Average: 26° Min: 25° Sep Max: 24° Average: 23° Min: 21° Oct Max: 18° Average: 17° Min: 15° Nov Max: 13° Average: 11° Min: 10° Dec Max: 7° Average: 6° Min: 4°
Max
Average
Min

Temperatures in Oga 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 27°C and the mean temperature sits around 26°C. January is the coolest month, with minimum temperatures around 2°C and an average of 3°C. Daily temperature variation is modest, with an average difference of 3°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 300mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 173mm Snow: 54mm Feb Precipitation: 138mm Snow: 41mm Mar Precipitation: 110mm Snow: 8mm Apr Precipitation: 116mm Snow: 0mm May Precipitation: 124mm Snow: 0mm Jun Precipitation: 143mm Snow: 0mm Jul Precipitation: 181mm Snow: 0mm Aug Precipitation: 175mm Snow: 0mm Sep Precipitation: 174mm Snow: 0mm Oct Precipitation: 186mm Snow: 0mm Nov Precipitation: 192mm Snow: 2mm Dec Precipitation: 251mm Snow: 49mm
Precipitation
Snow

Oga is a fairly wet location, receiving approximately 1962mm of precipitation annually, which averages out to around 164mm per month. The wettest month is December, averaging 251mm of rainfall. November and October also tend to see above-average precipitation. The driest month is March, with just 110mm. That's 141mm less than December, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 154cm accumulating over the season. January typically sees the most snow at around 54cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h 30km/h 35km/h 40km/h 45km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 43km/h Feb Wind Speed: 41km/h Mar Wind Speed: 35km/h Apr Wind Speed: 33km/h May Wind Speed: 29km/h Jun Wind Speed: 26km/h Jul Wind Speed: 24km/h Aug Wind Speed: 27km/h Sep Wind Speed: 29km/h Oct Wind Speed: 34km/h Nov Wind Speed: 38km/h Dec Wind Speed: 44km/h
Wind Speed

Oga is very windy, with an average annual wind speed of 33km/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 44km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in July, with average winds dropping to 24km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 20km/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 42km/h in winter, 32km/h in spring, 26km/h in summer, 34km/h in autumn.

Seasons

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

88 days until Summer

It is currently spring in Oga, which began on March 20, 2026. Oga 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 27°C, while the coldest stretch bottoms out in January near 2°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

Spring

Temperatures range from 5 to 16°C. Rainfall is heavy, totalling around 350mm across the season with a monthly average of 117mm. Winds are strong, averaging 32km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 18 to 27°C. Rainfall is heavy, totalling around 499mm across the season with a monthly average of 166mm. Winds are strong, averaging 26km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 10 to 24°C. Rainfall is heavy, totalling around 552mm across the season with a monthly average of 184mm. Winds are strong, averaging 34km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 2 to 7°C. Rainfall is heavy, totalling around 562mm across the season with a monthly average of 187mm. Expect around 144cm of snow accumulation during this period. Winds are strong, averaging 42km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Monthly Climate Data

The table below shows monthly climate averages for Oga 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
2 °C
4 °C
43 km/h
173 mm
54 cm
Feb
2 °C
5 °C
41 km/h
138 mm
41 cm
Mar Current
5 °C
7 °C
35 km/h
110 mm
8 cm
Apr
9 °C
11 °C
33 km/h
116 mm
0 cm
May
13 °C
16 °C
29 km/h
124 mm
0 cm
Jun
18 °C
20 °C
26 km/h
143 mm
0 cm
Jul
23 °C
24 °C
24 km/h
181 mm
0 cm
Aug
25 °C
27 °C
27 km/h
175 mm
0 cm
Sep
21 °C
24 °C
29 km/h
174 mm
0 cm
Oct
15 °C
18 °C
34 km/h
186 mm
0 cm
Nov
10 °C
13 °C
38 km/h
192 mm
2 cm
Dec
4 °C
7 °C
44 km/h
251 mm
49 cm
Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)