Climate Insights for Tōno

Tōno Shi, Iwate, Japan

Hottest
August
27°C peak
Coldest
January
-3°C low
Wettest
August
185mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Tōno is temperate. The average annual temperature is 11°C and approximately 1317mm of precipitation falls per year. Tōno receives a notable amount of rainfall throughout the year, including during its driest month. Tōno 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 -3°C. Snowfall occurs from January to December, with around 84cm accumulating over the season.

Temperature

-10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 2° Average: -1° Min: -3° Feb Max: 3° Average: 0° Min: -3° Mar Max: 8° Average: 4° Min: 1° Apr Max: 14° Average: 9° Min: 5° May Max: 19° Average: 15° Min: 11° Jun Max: 22° Average: 18° Min: 15° Jul Max: 26° Average: 22° Min: 20° Aug Max: 27° Average: 23° Min: 21° Sep Max: 23° Average: 20° Min: 16° Oct Max: 17° Average: 13° Min: 9° Nov Max: 11° Average: 7° Min: 3° Dec Max: 4° Average: 1° Min: -1°
Max
Average
Min

Temperatures in Tōno vary considerably across the year, with a 30°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 23°C. The coldest month is January, when overnight lows fall to -3°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: 53mm Snow: 24mm Feb Precipitation: 53mm Snow: 21mm Mar Precipitation: 106mm Snow: 17mm Apr Precipitation: 110mm Snow: 5mm May Precipitation: 104mm Snow: 0mm Jun Precipitation: 132mm Snow: 0mm Jul Precipitation: 170mm Snow: 0mm Aug Precipitation: 185mm Snow: 0mm Sep Precipitation: 153mm Snow: 0mm Oct Precipitation: 123mm Snow: 0mm Nov Precipitation: 68mm Snow: 3mm Dec Precipitation: 60mm Snow: 15mm
Precipitation
Snow

Tōno is a fairly wet location, receiving approximately 1317mm of precipitation annually, which averages out to around 110mm per month. The wettest month is August, averaging 185mm of rainfall. July and September also tend to see above-average precipitation. The driest month is February, with just 53mm. That's 133mm 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. Snowfall is a regular feature from January to December, with around 84cm accumulating over the season. January typically sees the most snow at around 24cm.

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: 20km/h Feb Wind Speed: 20km/h Mar Wind Speed: 19km/h Apr Wind Speed: 18km/h May Wind Speed: 16km/h Jun Wind Speed: 14km/h Jul Wind Speed: 11km/h Aug Wind Speed: 12km/h Sep Wind Speed: 13km/h Oct Wind Speed: 15km/h Nov Wind Speed: 16km/h Dec Wind Speed: 18km/h
Wind Speed

Tōno is mildly breezy, with an average annual wind speed of 16km/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 20km/h, noticeable enough to affect lighter 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 9km/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 19km/h in winter, 17km/h in spring, 12km/h in summer, 15km/h in autumn.

Seasons

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

87 days until Summer

It is currently spring in Tōno, which began on March 20, 2026. Tōno 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 -3°C. Summer is next, beginning on June 21, 2026 — 87 days from now.

Spring

Temperatures range from 1 to 19°C. Rainfall is heavy, totalling around 320mm across the season with a monthly average of 107mm. Winds are moderate at around 17km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 15 to 27°C. Rainfall is heavy, totalling around 487mm across the season with a monthly average of 162mm. Winds are generally light, averaging 12km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 3 to 23°C. Rainfall is heavy, totalling around 345mm across the season with a monthly average of 115mm. Winds are generally light, averaging 15km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from -3 to 4°C. Precipitation is moderate at around 166mm for the season, averaging 55mm per month. Expect around 60cm of snow accumulation during this period. Winds are moderate at around 19km/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 Tōno 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
-3 °C
2 °C
20 km/h
53 mm
24 cm
Feb
-3 °C
3 °C
20 km/h
53 mm
21 cm
Mar Current
1 °C
8 °C
19 km/h
106 mm
17 cm
Apr
5 °C
14 °C
18 km/h
110 mm
5 cm
May
11 °C
19 °C
16 km/h
104 mm
0 cm
Jun
15 °C
22 °C
14 km/h
132 mm
0 cm
Jul
20 °C
26 °C
11 km/h
170 mm
0 cm
Aug
21 °C
27 °C
12 km/h
185 mm
0 cm
Sep
16 °C
23 °C
13 km/h
153 mm
0 cm
Oct
9 °C
17 °C
15 km/h
123 mm
0 cm
Nov
3 °C
11 °C
16 km/h
68 mm
3 cm
Dec
-1 °C
4 °C
18 km/h
60 mm
15 cm
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Metric (°C, km/h)