Chitose, Japan experiences average highs of 12°C (54°F) and lows of 5°C (41°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have warmed by 1.9°C (3.4°F) across the available records.
Chitose, Japan Weather & Climate 2026
Monthly climate averages for Chitose, Japan. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Apr–Nov At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.9/10
Best: June, July, August, September
UV Index
4
Low
Temperature 12°C / 5°C
Feels Like 10°C / 3°C
Rainy Days 10
Rainfall 87 mm
Sunshine 9 h
Humidity 78%
Wind Speed 21 km/h
Dew Point 5°C
Snow Days 10 days
Frost Days 21 days
Hottest Month
24°C
August
Avg Low19°C
Rain14days
Coldest Month
-8°C
January
Avg High-1°C
Rain8days
Driest Month
8days
January
Avg High-1°C
Avg Low-8°C
Windiest Month
23 km/h
November (Gusts 42)
Sea Temperature
4°C – 24°C
Warmest water: August (
24.1°C
)
Worst Time to Visit
Consider avoiding January, February, March, December due to very cold temperatures.
Sun Position
Sunrise 03:56
Daylight 15.3h
Sunset 19:15
Live conditions—
Chitose on the map · live conditions
Chitose, Japan
- Continent
- Asia
- Country
- Japan
- City
- Chitose
- Population
- 98K
- Coordinates
- 42.82°, 141.65°
Seasonal Breakdown
Spring
Mar–May
Avg High 10°C
Avg Low 3°C
Rain 10 days/mo
Summer
Jun–Aug
Avg High 22°C
Avg Low 17°C
Rain 12 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 15°C
Avg Low 9°C
Rain 11 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 0°C
Avg Low -7°C
Rain 9 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: -1°C / -8°C . Feb: -1°C / -8°C . Mar: 5°C / -3°C . Apr: 10°C / 3°C . May: 16°C / 8°C . Jun: 19°C / 13°C . Jul: 23°C / 18°C . Aug: 24°C / 19°C . Sep: 21°C / 15°C . Oct: 15°C / 9°C . Nov: 8°C / 2°C . Dec: 1°C / -5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 37 mm. Feb: 40 mm. Mar: 66 mm. Apr: 82 mm. May: 78 mm. Jun: 105 mm. Jul: 97 mm. Aug: 179 mm. Sep: 127 mm. Oct: 100 mm. Nov: 82 mm. Dec: 56 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 73%. Feb: 74%. Mar: 75%. Apr: 74%. May: 79%. Jun: 84%. Jul: 87%. Aug: 86%. Sep: 81%. Oct: 75%. Nov: 72%. Dec: 70%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 21 km/h . Feb: 21 km/h . Mar: 22 km/h . Apr: 22 km/h . May: 20 km/h . Jun: 19 km/h . Jul: 17 km/h . Aug: 19 km/h . Sep: 19 km/h . Oct: 22 km/h . Nov: 23 km/h . Dec: 22 km/h .
Sunshine
Sunshine
Sunshine: Jan: 7h. Feb: 8h. Mar: 9h. Apr: 10h. May: 10h. Jun: 10h. Jul: 10h. Aug: 9h. Sep: 9h. Oct: 8h. Nov: 7h. Dec: 6h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 5°C . Feb: 4°C . Mar: 4°C . Apr: 6°C . May: 10°C . Jun: 15°C . Jul: 21°C . Aug: 24°C . Sep: 23°C . Oct: 18°C . Nov: 13°C . Dec: 9°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 5. May: UV 6. Jun: UV 6. Jul: UV 6. Aug: UV 5. Sep: UV 5. Oct: UV 3. Nov: UV 2. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 16 days. Feb: 15 days. Mar: 8 days. Apr: 2 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 4 days. Dec: 16 days.
Climate Trends
Average highs have warmed by 1.9°C (3.4°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 26°C | Aug · 24°C |
| Coldest month | Feb 2025 · -5°C | Jan · -8°C |
| Wettest month | Sep 2025 · 243 mm | Aug · 179 mm |
| Windiest month | Dec 2025 · 26 km/h | Nov · 23 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May
Fair June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -1°C / -8°C | -6°C / -13°C | 8days (37 mm) Wet | 7.2h Good | 73% Muggy | 2.3 Moderate | Poor | View Details |
| February | -1°C / -8°C | -6°C / -13°C | 8days (40 mm) Wet | 8.3h Good | 74% Muggy | 3.4 Moderate | Poor | View Details |
| March | 5°C / -3°C | 0°C / -7°C | 9days (66 mm) Wet | 9.2h Good | 75% Muggy | 4.4 Moderate | Poor | View Details |
| April | 10°C / 3°C | 7°C / -1°C | 11days (82 mm) Wet | 9.7h Good | 74% Muggy | 5 Moderate | Poor | View Details |
| May | 16°C / 8°C | 14°C / 6°C | 11days (78 mm) Wet | 10.1h Excellent | 79% Humid | 5.9 High | Fair | View Details |
| June best | 19°C / 13°C | 19°C / 12°C | 10days (105 mm) Wet | 10h Excellent | 84% Humid | 6.3 High | Excellent | View Details |
| July best | 23°C / 18°C | 25°C / 19°C | 11days (97 mm) Wet | 9.6h Good | 87% Very Muggy | 6.1 High | Excellent | View Details |
| August best | 24°C / 19°C | 27°C / 20°C | 14days (179 mm) Wet | 8.5h Good | 86% Very Muggy | 5.4 High | Excellent | View Details |
| September best | 21°C / 15°C | 22°C / 15°C | 11days (127 mm) Wet | 8.6h Good | 81% Humid | 4.8 Moderate | Excellent | View Details |
| October | 15°C / 9°C | 13°C / 6°C | 10days (100 mm) Wet | 8h Good | 75% Muggy | 3.4 Moderate | Fair | View Details |
| November | 8°C / 2°C | 5°C / -2°C | 11days (82 mm) Wet | 7.1h Good | 72% Muggy | 2.3 Moderate | Poor | View Details |
| December | 1°C / -5°C | -4°C / -10°C | 10days (56 mm) Wet | 6.3h Fair | 70% Muggy | 1.8 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Chitose are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Chitose, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Chitose is August, with average daytime highs of 24°C (76°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Chitose is January, with average overnight lows of -8°C (17°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Chitose is August, averaging 179mm of precipitation across 14 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Chitose runs through August, April, May, July, with the heaviest rainfall in August. Based on 10-year averages for Chitose.
Chitose receives approximately 103 sunshine hours per year. The sunniest month is May with around 10 hours. Based on climate data for Chitose.
The least favorable months to visit Chitose are January, February, March, December, primarily due to very cold temperatures. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Chitose is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Chitose is 78%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in August, September average 23°C (73°F), which is warm and comfortable for swimming and water activities.
Yes, Chitose receives snow. Months with snowfall average 10 snow days and 14 cm (6 in) of accumulation, with about 21 frost days during winter.
Average wind speeds in Chitose are 21 km/h (13 mph). The windiest month is November with peak winds reaching 23 km/h (14 mph) (gusts up to 42 km/h / 26 mph).
Chitose averages 2 clear-sky days per month with overall cloud cover around 61%. The clearest skies occur in May.
The annual average dew point in Chitose is 5°C (41°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Chitose has a Warm-Summer Continental climate, classified as Dfb under the Köppen system. Continental climates experience extreme temperature ranges — hot summers and cold, snowy winters.
The 'feels like' temperature in Chitose ranges from 3°C (37°F) to 10°C (50°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Chitose. It earns a climate score of 7.9/10 with Excellent.
For June in Chitose, pack Umbrella, Waterproof jacket, Comfortable walking shoes. With average highs of 19°C (66°F) and 10 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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