Climate Insights for Suibara

Agano Shi, Niigata-ken, Japan

Hottest
August
30°C peak
Coldest
February
-1°C low
Wettest
July
303mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Suibara is temperate. The average annual temperature is 13°C and approximately 2359mm of precipitation falls per year. Suibara receives a notable amount of rainfall throughout the year, including during its driest month. Suibara 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 -1°C. Suibara experiences heavy snowfall, typically from January through December.

Temperature

-10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 4° Average: 2° Min: 0° Feb Max: 5° Average: 2° Min: -1° Mar Max: 9° Average: 6° Min: 3° Apr Max: 15° Average: 11° Min: 7° May Max: 21° Average: 17° Min: 13° Jun Max: 24° Average: 20° Min: 17° Jul Max: 28° Average: 25° Min: 22° Aug Max: 30° Average: 26° Min: 23° Sep Max: 25° Average: 22° Min: 19° Oct Max: 19° Average: 15° Min: 12° Nov Max: 13° Average: 9° Min: 6° Dec Max: 6° Average: 4° Min: 2°
Max
Average
Min

Temperatures in Suibara vary considerably across the year, with a 31°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 26°C. The coldest month is February, when overnight lows fall to -1°C and the daily average is 2°C. Daily temperature variation is modest, with an average difference of 6°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 350mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 251mm Snow: 140mm Feb Precipitation: 165mm Snow: 85mm Mar Precipitation: 145mm Snow: 29mm Apr Precipitation: 153mm Snow: 7mm May Precipitation: 124mm Snow: 0mm Jun Precipitation: 181mm Snow: 0mm Jul Precipitation: 303mm Snow: 0mm Aug Precipitation: 278mm Snow: 0mm Sep Precipitation: 175mm Snow: 0mm Oct Precipitation: 169mm Snow: 0mm Nov Precipitation: 168mm Snow: 8mm Dec Precipitation: 247mm Snow: 91mm
Precipitation
Snow

Suibara is a very wet location, receiving approximately 2359mm of precipitation annually, which averages out to around 197mm per month. The wettest month is July, averaging 303mm of rainfall. August and January also tend to see above-average precipitation. The driest month is May, with just 124mm. That's 179mm less than July, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Suibara receives heavy snowfall, accumulating around 358cm annually from January through December. The snowiest month is January, with approximately 140cm. Winter travel should account for significant snow cover.

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: 3km/h Apr Wind Speed: 3km/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: 3km/h Nov Wind Speed: 3km/h Dec Wind Speed: 3km/h
Wind Speed

Suibara is relatively calm, with an average annual wind speed of 3km/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 July, 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

93 days until Autumn

It is currently summer in Suibara, which began on June 21, 2026. Suibara 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 -1°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

Spring

Temperatures range from 3 to 21°C. Rainfall is heavy, totalling around 422mm across the season with a monthly average of 141mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 17 to 30°C. Rainfall is heavy, totalling around 762mm across the season with a monthly average of 254mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 6 to 25°C. Rainfall is heavy, totalling around 512mm across the season with a monthly average of 171mm. Expect around 8cm of snow accumulation during this period. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -1 to 6°C. Rainfall is heavy, totalling around 663mm across the season with a monthly average of 221mm. Expect around 315cm of snow accumulation during this period. Winds are generally light, averaging 3km/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 Suibara 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
0 °C
4 °C
3 km/h
251 mm
140 cm
Feb
-1 °C
5 °C
3 km/h
165 mm
85 cm
Mar
3 °C
9 °C
3 km/h
145 mm
29 cm
Apr
7 °C
15 °C
3 km/h
153 mm
7 cm
May
13 °C
21 °C
2 km/h
124 mm
0 cm
Jun Current
17 °C
24 °C
2 km/h
181 mm
0 cm
Jul
22 °C
28 °C
2 km/h
303 mm
0 cm
Aug
23 °C
30 °C
2 km/h
278 mm
0 cm
Sep
19 °C
25 °C
2 km/h
175 mm
0 cm
Oct
12 °C
19 °C
3 km/h
169 mm
0 cm
Nov
6 °C
13 °C
3 km/h
168 mm
8 cm
Dec
2 °C
6 °C
3 km/h
247 mm
91 cm
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