Uto, Japan experiences average highs of 20°C (68°F) and lows of 14°C (57°F) throughout the year. Rainfall is moderate, averaging about 12 rainy days per month. Average highs have stayed broadly stable across the available records.
Uto, Japan Weather & Climate 2026
Monthly climate averages for Uto, Japan. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Mar–Sep At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.9/10
Best: May, October
UV Index
6
High
Temperature 20°C / 14°C
Feels Like 21°C / 14°C
Rainy Days 12
Rainfall 164 mm
Sunshine 8 h
Humidity 78%
Wind Speed 13 km/h
Dew Point 13°C
Snow Days 3 days
Frost Days 3 days
Hottest Month
31°C
August
Avg Low 25°C
Rain 14 days
Coldest Month
4°C
January
Avg High 10°C
Rain 10 days
Driest Month
8 days
November
Avg High 17°C
Avg Low 10°C
Windiest Month
15 km/h
February (Gusts 35)
Sea Temperature
11°C – 31°C
Warmest water: August (
30.5°C
)
Worst Time to Visit
Consider avoiding January, February, July, August due to frequent rain.
Sun Position
Sunrise 05:20
Daylight 14.1h
Sunset 19:26
Live conditions —
Uto on the map · live conditions
Uto, Japan
- Continent
- Asia
- Country
- Japan
- City
- Uto
- Population
- 37.4K
- Coordinates
- 32.68°, 130.67°
Seasonal Breakdown
Spring
Mar–May
Avg High 19°C
Avg Low 12°C
Rain 12 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 29°C
Avg Low 23°C
Rain 16 days/mo
Autumn
Sep–Nov
Avg High 23°C
Avg Low 16°C
Rain 11 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 10°C
Avg Low 4°C
Rain 10 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
High Low Shaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 10°C / 4°C . Feb: 11°C / 4°C . Mar: 15°C / 8°C . Apr: 20°C / 12°C . May: 23°C / 16°C . Jun: 26°C / 20°C . Jul: 30°C / 24°C . Aug: 31°C / 25°C . Sep: 28°C / 22°C . Oct: 23°C / 16°C . Nov: 17°C / 10°C . Dec: 11°C / 5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 75 mm. Feb: 105 mm. Mar: 142 mm. Apr: 149 mm. May: 218 mm. Jun: 368 mm. Jul: 292 mm. Aug: 204 mm. Sep: 165 mm. Oct: 100 mm. Nov: 82 mm. Dec: 72 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 74%. Feb: 73%. Mar: 75%. Apr: 75%. May: 78%. Jun: 84%. Jul: 85%. Aug: 81%. Sep: 82%. Oct: 78%. Nov: 77%. Dec: 74%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 13 km/h . Feb: 15 km/h . Mar: 14 km/h . Apr: 14 km/h . May: 13 km/h . Jun: 13 km/h . Jul: 13 km/h . Aug: 12 km/h . Sep: 12 km/h . Oct: 12 km/h . Nov: 12 km/h . Dec: 13 km/h .
Sunshine
Sunshine
Sunshine: Jan: 7h. Feb: 7h. Mar: 8h. Apr: 8h. May: 8h. Jun: 7h. Jul: 9h. Aug: 10h. Sep: 8h. Oct: 8h. Nov: 8h. Dec: 7h.
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 12°C . Feb: 11°C . Mar: 13°C . Apr: 17°C . May: 20°C . Jun: 24°C . Jul: 29°C . Aug: 31°C . Sep: 30°C . Oct: 25°C . Nov: 20°C . Dec: 15°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 4. Mar: UV 6. Apr: UV 6. May: UV 6. Jun: UV 6. Jul: UV 8. Aug: UV 8. Sep: UV 7. Oct: UV 5. Nov: UV 4. Dec: UV 3.
Monthly Daylight Hours
Daylight 12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Snow Days
Snow Days Snowfall
Snow Days: Jan: 4 days. Feb: 3 days. Mar: 0 days. Apr: 0 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 0 days. Dec: 1 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 67 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 32°C | Aug · 31°C |
| Coldest month | Feb 2025 · 2°C | Jan · 4°C |
| Wettest month | Jun 2025 · 372 mm | Jun · 368 mm |
| Windiest month | Feb 2025 · 16 km/h | Feb · 15 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Fair April
Good May best
Excellent June
Wet July
Wet August
Wet September
Good October best
Excellent November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 10°C / 4°C | 7°C / 1°C | 10days (75 mm) Wet | 6.9h Fair | 74% Muggy | 3.6 Moderate | Poor | View Details |
| February | 11°C / 4°C | 8°C / 1°C | 11days (105 mm) Wet | 7.2h Good | 73% Muggy | 4.4 Moderate | Poor | View Details |
| March | 15°C / 8°C | 14°C / 6°C | 13days (142 mm) Wet | 7.8h Good | 75% Muggy | 5.5 High | Fair | View Details |
| April | 20°C / 12°C | 20°C / 11°C | 11days (149 mm) Wet | 8.1h Good | 75% Muggy | 6.2 High | Good | View Details |
| May best | 23°C / 16°C | 25°C / 16°C | 13days (218 mm) Wet | 8.3h Good | 78% Humid | 6.4 High | Excellent | View Details |
| June | 26°C / 20°C | 29°C / 23°C | 17days (368 mm) Wet | 6.9h Fair | 84% Humid | 6.2 High | Wet | View Details |
| July | 30°C / 24°C | 35°C / 29°C | 16days (292 mm) Wet | 8.6h Good | 85% Humid | 7.6 Very High | Wet | View Details |
| August | 31°C / 25°C | 37°C / 30°C | 14days (204 mm) Wet | 9.7h Good | 81% Humid | 7.5 Very High | Wet | View Details |
| September | 28°C / 22°C | 32°C / 26°C | 14days (165 mm) Wet | 8h Good | 82% Humid | 6.7 High | Good | View Details |
| October best | 23°C / 16°C | 24°C / 17°C | 10days (100 mm) Wet | 7.8h Good | 78% Humid | 5.2 High | Excellent | View Details |
| November | 17°C / 10°C | 16°C / 9°C | 8days (82 mm) Wet | 7.5h Good | 77% Humid | 4 Moderate | Good | View Details |
| December | 11°C / 5°C | 9°C / 2°C | 9days (72 mm) Wet | 6.8h Fair | 74% Muggy | 3.3 Moderate | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Uto are May, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Uto, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Uto is August, with average daytime highs of 31°C (88°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Uto is January, with average overnight lows of 4°C (38°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Uto is June, averaging 368mm of precipitation across 17 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Uto runs through June, July, August, September, with the heaviest rainfall in June. Based on 10-year averages for Uto.
Uto receives approximately 94 sunshine hours per year. The sunniest month is August with around 10 hours. Based on climate data for Uto.
The least favorable months to visit Uto are January, February, July, August, primarily due to frequent rain. For the best conditions, consider May, October instead.
The annual average UV index in Uto is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Uto is 78%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in June, July, August, September, October average 28°C (82°F), which is warm and comfortable for swimming and water activities.
Yes, Uto receives snow. Months with snowfall average 3 snow days and 2 cm (1 in) of accumulation, with about 3 frost days during winter.
Average wind speeds in Uto are 13 km/h (8 mph). The windiest month is February with peak winds reaching 15 km/h (9 mph) (gusts up to 35 km/h / 22 mph).
Uto averages 3 clear-sky days per month with overall cloud cover around 62%. The clearest skies occur in October.
The annual average dew point in Uto is 13°C (55°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Uto has a Humid Subtropical climate, classified as Cfa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Uto ranges from 14°C (57°F) to 21°C (70°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
July is not the best time to visit Uto, with a climate score of 3.6/10. Consider visiting during May, October instead for better conditions.
For July in Uto, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 30°C (85°F) and 16 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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