Climate Insights for Rikubetsu

Ashoro-gun, Hokkaido, Japan

Hottest
July
22°C peak
Coldest
January
-13°C low
Wettest
August
191mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Rikubetsu is cool. The average annual temperature is 5°C and approximately 1166mm of precipitation falls per year. Rikubetsu receives a notable amount of rainfall throughout the year, including during its driest month. Rikubetsu is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are January, February, December, when temperatures can drop to -13°C. Rikubetsu experiences heavy snowfall, typically from January through December.

Temperature

-20° -10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -5° Average: -9° Min: -13° Feb Max: -3° Average: -8° Min: -12° Mar Max: 2° Average: -2° Min: -6° Apr Max: 9° Average: 4° Min: 0° May Max: 15° Average: 11° Min: 6° Jun Max: 17° Average: 14° Min: 10° Jul Max: 22° Average: 19° Min: 16° Aug Max: 22° Average: 19° Min: 16° Sep Max: 19° Average: 15° Min: 11° Oct Max: 13° Average: 8° Min: 4° Nov Max: 5° Average: 1° Min: -2° Dec Max: -2° Average: -6° Min: -10°
Max
Average
Min

Temperatures in Rikubetsu vary considerably across the year, with a 35°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 22°C with a mean of 19°C. The coldest month is January, when overnight lows fall to -13°C and the daily average is -9°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between November and December, with a 7°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 55mm Snow: 41mm Feb Precipitation: 49mm Snow: 35mm Mar Precipitation: 84mm Snow: 45mm Apr Precipitation: 84mm Snow: 25mm May Precipitation: 84mm Snow: 1mm Jun Precipitation: 119mm Snow: 0mm Jul Precipitation: 110mm Snow: 0mm Aug Precipitation: 191mm Snow: 0mm Sep Precipitation: 115mm Snow: 0mm Oct Precipitation: 125mm Snow: 4mm Nov Precipitation: 93mm Snow: 24mm Dec Precipitation: 59mm Snow: 34mm
Precipitation
Snow

Rikubetsu is a moderately rainy area, receiving approximately 1166mm of precipitation annually, which averages out to around 97mm per month. The wettest month is August, averaging 191mm of rainfall. October and June also tend to see above-average precipitation. The driest month is February, with just 49mm. That's 142mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Rikubetsu receives heavy snowfall, accumulating around 209cm annually from January through December. The snowiest month is March, with approximately 45cm. Winter travel should account for significant snow cover.

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

Rikubetsu is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, 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 15km/h in winter, 16km/h in spring, 12km/h in summer, 14km/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 Rikubetsu, which began on March 20, 2026. Rikubetsu 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 July at around 22°C, while the coldest stretch bottoms out in January near -13°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

Spring

Temperatures range from -6 to 15°C. Precipitation is moderate at around 251mm for the season, averaging 84mm per month. Winds are moderate at around 16km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 10 to 22°C. Rainfall is heavy, totalling around 419mm across the season with a monthly average of 140mm. Winds are generally light, averaging 12km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -2 to 19°C. Rainfall is heavy, totalling around 333mm across the season with a monthly average of 111mm. Expect around 28cm of snow accumulation during this period. Winds are generally light, averaging 14km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -13 to -2°C. Precipitation is moderate at around 162mm for the season, averaging 54mm per month. Expect around 110cm of snow accumulation during this period. Winds are generally light, averaging 15km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.

Monthly Climate Data

The table below shows monthly climate averages for Rikubetsu 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
-13 °C
-5 °C
14 km/h
55 mm
41 cm
Feb
-12 °C
-3 °C
15 km/h
49 mm
35 cm
Mar Current
-6 °C
2 °C
16 km/h
84 mm
45 cm
Apr
0 °C
9 °C
17 km/h
84 mm
25 cm
May
6 °C
15 °C
16 km/h
84 mm
1 cm
Jun
10 °C
17 °C
13 km/h
119 mm
0 cm
Jul
16 °C
22 °C
11 km/h
110 mm
0 cm
Aug
16 °C
22 °C
12 km/h
191 mm
0 cm
Sep
11 °C
19 °C
13 km/h
115 mm
0 cm
Oct
4 °C
13 °C
15 km/h
125 mm
4 cm
Nov
-2 °C
5 °C
15 km/h
93 mm
24 cm
Dec
-10 °C
-2 °C
15 km/h
59 mm
34 cm
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Metric (°C, km/h)