Climate Insights for Uwa

Seiyo Shi, Ehime, Japan

Hottest
August
29°C peak
Coldest
January
7°C low
Wettest
June
275mm rain
Best to Visit
November
Mild temps & low rain

Climate Overview

The climate in Uwa is temperate. The average annual temperature is 18°C and approximately 1711mm of precipitation falls per year. Uwa receives a notable amount of rainfall throughout the year, including during its driest month. Uwa 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 7°C.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 10° Average: 9° Min: 7° Feb Max: 11° Average: 9° Min: 7° Mar Max: 14° Average: 12° Min: 10° Apr Max: 18° Average: 16° Min: 14° May Max: 21° Average: 19° Min: 17° Jun Max: 24° Average: 22° Min: 21° Jul Max: 27° Average: 26° Min: 25° Aug Max: 29° Average: 27° Min: 26° Sep Max: 27° Average: 25° Min: 23° Oct Max: 22° Average: 21° Min: 19° Nov Max: 18° Average: 16° Min: 14° Dec Max: 12° Average: 11° Min: 9°
Max
Average
Min

Temperatures in Uwa vary considerably across the year, with a 22°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 27°C. January is the coolest month, with minimum temperatures around 7°C and an average of 9°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between November and December, with a 5°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: 80mm Snow: 2mm Feb Precipitation: 86mm Snow: 0mm Mar Precipitation: 129mm Snow: 0mm Apr Precipitation: 136mm Snow: 0mm May Precipitation: 168mm Snow: 0mm Jun Precipitation: 275mm Snow: 0mm Jul Precipitation: 236mm Snow: 0mm Aug Precipitation: 135mm Snow: 0mm Sep Precipitation: 173mm Snow: 0mm Oct Precipitation: 134mm Snow: 0mm Nov Precipitation: 84mm Snow: 0mm Dec Precipitation: 76mm Snow: 0mm
Precipitation
Snow

Uwa is a fairly wet location, receiving approximately 1711mm of precipitation annually, which averages out to around 143mm per month. The wettest month is June, averaging 275mm of rainfall. July and September also tend to see above-average precipitation. The driest month is December, with just 76mm. That's 198mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h 30km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 30km/h Feb Wind Speed: 30km/h Mar Wind Speed: 28km/h Apr Wind Speed: 26km/h May Wind Speed: 23km/h Jun Wind Speed: 22km/h Jul Wind Speed: 21km/h Aug Wind Speed: 21km/h Sep Wind Speed: 22km/h Oct Wind Speed: 24km/h Nov Wind Speed: 26km/h Dec Wind Speed: 30km/h
Wind Speed

Uwa is moderately windy, with an average annual wind speed of 25km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 30km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in August, with average winds dropping to 21km/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 30km/h in winter, 26km/h in spring, 22km/h in summer, 24km/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 Uwa, which began on March 20, 2026. Uwa 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 7°C. Summer is next, beginning on June 21, 2026 — 87 days from now.

Spring

Temperatures range from 10 to 21°C. Rainfall is heavy, totalling around 432mm across the season with a monthly average of 144mm. Winds are strong, averaging 26km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 21 to 29°C. Rainfall is heavy, totalling around 645mm across the season with a monthly average of 215mm. Winds are moderate at around 22km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 14 to 27°C. Rainfall is heavy, totalling around 391mm across the season with a monthly average of 130mm. Winds are moderate at around 24km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 7 to 12°C. Precipitation is moderate at around 242mm for the season, averaging 81mm per month. Winds are strong, averaging 30km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan
Feb
Mar 12°
Apr 16°
May 19°
Jun 22°
Jul 26°
Aug 27°
Sep 25°
Oct 21°
Nov 16°
Dec 11°

The best time to visit Uwa is during November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 84mm per month. By contrast, August can be uncomfortably hot with highs reaching 29°C, while January is the coldest period with lows dropping to 7°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Uwa 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. 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
7 °C
10 °C
30 km/h
80 mm
2 cm
Feb
7 °C
11 °C
30 km/h
86 mm
0 cm
Mar Current
10 °C
14 °C
28 km/h
129 mm
0 cm
Apr
14 °C
18 °C
26 km/h
136 mm
0 cm
May
17 °C
21 °C
23 km/h
168 mm
0 cm
Jun
21 °C
24 °C
22 km/h
275 mm
0 cm
Jul
25 °C
27 °C
21 km/h
236 mm
0 cm
Aug
26 °C
29 °C
21 km/h
135 mm
0 cm
Sep
23 °C
27 °C
22 km/h
173 mm
0 cm
Oct
19 °C
22 °C
24 km/h
134 mm
0 cm
Nov
14 °C
18 °C
26 km/h
84 mm
0 cm
Dec
9 °C
12 °C
30 km/h
76 mm
0 cm
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Metric (°C, km/h)