Climate Insights for Yachi

Nishimurayama-gun, Yamagata-ken, Japan

Hottest
August
29°C peak
Coldest
January
-4°C low
Wettest
August
198mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Yachi is temperate. The average annual temperature is 11°C and approximately 1633mm of precipitation falls per year. Yachi receives a notable amount of rainfall throughout the year, including during its driest month. Yachi 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 -4°C. Yachi experiences heavy snowfall, typically from January through December.

Temperature

-10° 0° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 2° Average: -1° Min: -4° Feb Max: 3° Average: 0° Min: -3° Mar Max: 8° Average: 4° Min: 1° Apr Max: 15° Average: 10° Min: 5° May Max: 20° Average: 15° Min: 11° Jun Max: 24° Average: 19° Min: 16° Jul Max: 27° Average: 24° Min: 20° Aug Max: 29° Average: 25° Min: 21° Sep Max: 24° Average: 20° Min: 17° Oct Max: 18° Average: 13° Min: 10° Nov Max: 11° Average: 7° Min: 4° Dec Max: 4° Average: 1° Min: -1°
Max
Average
Min

Temperatures in Yachi vary considerably across the year, with a 33°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 25°C. The coldest month is January, when overnight lows fall to -4°C and the daily average is -1°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between September and October, 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: 155mm Snow: 120mm Feb Precipitation: 112mm Snow: 78mm Mar Precipitation: 111mm Snow: 39mm Apr Precipitation: 117mm Snow: 10mm May Precipitation: 106mm Snow: 0mm Jun Precipitation: 124mm Snow: 0mm Jul Precipitation: 181mm Snow: 0mm Aug Precipitation: 198mm Snow: 0mm Sep Precipitation: 132mm Snow: 0mm Oct Precipitation: 125mm Snow: 0mm Nov Precipitation: 107mm Snow: 13mm Dec Precipitation: 166mm Snow: 96mm
Precipitation
Snow

Yachi is a fairly wet location, receiving approximately 1633mm of precipitation annually, which averages out to around 136mm per month. The wettest month is August, averaging 198mm of rainfall. July and December also tend to see above-average precipitation. The driest month is May, with just 106mm. That's 92mm less than August, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Yachi receives heavy snowfall, accumulating around 355cm annually from January through December. The snowiest month is January, with approximately 120cm. Winter travel should account for significant snow cover.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 9km/h Feb Wind Speed: 10km/h Mar Wind Speed: 9km/h Apr Wind Speed: 9km/h May Wind Speed: 7km/h Jun Wind Speed: 7km/h Jul Wind Speed: 6km/h Aug Wind Speed: 6km/h Sep Wind Speed: 6km/h Oct Wind Speed: 7km/h Nov Wind Speed: 8km/h Dec Wind Speed: 9km/h
Wind Speed

Yachi 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 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/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 9km/h in winter, 8km/h in spring, 6km/h in summer, 7km/h in autumn.

Seasons

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

87 days until Winter

It is currently autumn in Yachi, which began on September 23, 2026. Yachi 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 29°C, while the coldest stretch bottoms out in January near -4°C. Winter is next, beginning on December 21, 2026 (87 days from now).

Spring

Temperatures range from 1 to 20°C. Rainfall is heavy, totalling around 333mm across the season with a monthly average of 111mm. Winds are generally light, averaging 8km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 16 to 29°C. Rainfall is heavy, totalling around 502mm across the season with a monthly average of 167mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 4 to 24°C. Rainfall is heavy, totalling around 365mm across the season with a monthly average of 122mm. Expect around 13cm of snow accumulation during this period. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -4 to 4°C. Rainfall is heavy, totalling around 433mm across the season with a monthly average of 144mm. Expect around 294cm of snow accumulation during this period. Winds are generally light, averaging 9km/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 Yachi 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
2 °C
9 km/h
155 mm
120 cm
Feb
-3 °C
3 °C
10 km/h
112 mm
78 cm
Mar
1 °C
8 °C
9 km/h
111 mm
39 cm
Apr
5 °C
15 °C
9 km/h
117 mm
10 cm
May
11 °C
20 °C
7 km/h
106 mm
0 cm
Jun
16 °C
24 °C
7 km/h
124 mm
0 cm
Jul
20 °C
27 °C
6 km/h
181 mm
0 cm
Aug
21 °C
29 °C
6 km/h
198 mm
0 cm
Sep Current
17 °C
24 °C
6 km/h
132 mm
0 cm
Oct
10 °C
18 °C
7 km/h
125 mm
0 cm
Nov
4 °C
11 °C
8 km/h
107 mm
13 cm
Dec
-1 °C
4 °C
9 km/h
166 mm
96 cm
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Metric (°C, km/h)