UTC Offset
UTC+09:00
Muroran, Japan Snapshot 2026
Where is Muroran?
Muroran, Japan
- Continent
- Asia
- Country
- Japan
- City
- Muroran
- Population
- 96.2K
- Coordinates
- 42.32°, 140.99°
Muroran is a city in Japan with a population of approximately 96.2K. Average temperatures range from -5°C (22°F) in January to 24°C (75°F) in August. The best time to visit is May, June, July, August, September.
Time in Muroran right now
Open full time & time zone page 00:25 25
Wednesday, July 1, 2026
IANA time zone
Asia/Tokyo
Daylight saving
No DST
Next DST change
—
Live weather in Muroran
Daylight in Muroran today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 14m
Climate normals for Muroran
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Poor May best
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -1°C / -5°C | -6°C / -11°C | 9days (55 mm) Wet | 7.1h Good | 73% Muggy | 2.2 Moderate | Poor | View Details |
| February | -1°C / -5°C | -5°C / -10°C | 8days (49 mm) Wet | 8.3h Good | 72% Muggy | 3.3 Moderate | Poor | View Details |
| March | 4°C / -1°C | 0°C / -5°C | 10days (75 mm) Wet | 9.1h Good | 76% Humid | 4.5 Moderate | Poor | View Details |
| April | 9°C / 4°C | 7°C / 0°C | 11days (86 mm) Wet | 9.6h Good | 76% Humid | 5.3 High | Poor | View Details |
| May best | 15°C / 9°C | 14°C / 7°C | 11days (86 mm) Wet | 10h Excellent | 80% Humid | 6.2 High | Good | View Details |
| June best | 18°C / 13°C | 19°C / 13°C | 12days (127 mm) Wet | 9.6h Good | 86% Very Muggy | 6.4 High | Excellent | View Details |
| July best | 23°C / 19°C | 25°C / 20°C | 12days (115 mm) Wet | 8.9h Good | 89% Very Muggy | 6.6 High | Excellent | View Details |
| August best | 24°C / 20°C | 27°C / 22°C | 16days (204 mm) Wet | 8h Good | 87% Very Muggy | 5.6 High | Excellent | View Details |
| September best | 21°C / 17°C | 22°C / 17°C | 13days (151 mm) Wet | 8.3h Good | 80% Humid | 5 Moderate | Excellent | View Details |
| October | 15°C / 10°C | 13°C / 8°C | 11days (110 mm) Wet | 8h Good | 73% Muggy | 3.7 Moderate | Good | View Details |
| November | 8°C / 3°C | 5°C / -1°C | 11days (97 mm) Wet | 7.2h Good | 71% Muggy | 2.5 Moderate | Poor | View Details |
| December | 1°C / -3°C | -4°C / -9°C | 12days (64 mm) Wet | 6.3h Fair | 72% Muggy | 1.8 Low | Poor | View Details |
Monthly Temperatures
High Low
Line chart showing monthly temperatures. Jan: -1°C / -5°C . Feb: -1°C / -5°C . Mar: 4°C / -1°C . Apr: 9°C / 4°C . May: 15°C / 9°C . Jun: 18°C / 13°C . Jul: 23°C / 19°C . Aug: 24°C / 20°C . Sep: 21°C / 17°C . Oct: 15°C / 10°C . Nov: 8°C / 3°C . Dec: 1°C / -3°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 55 mm. Feb: 49 mm. Mar: 75 mm. Apr: 86 mm. May: 86 mm. Jun: 127 mm. Jul: 115 mm. Aug: 204 mm. Sep: 151 mm. Oct: 110 mm. Nov: 97 mm. Dec: 64 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 73%. Feb: 72%. Mar: 76%. Apr: 76%. May: 80%. Jun: 86%. Jul: 89%. Aug: 87%. Sep: 80%. Oct: 73%. Nov: 71%. Dec: 72%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 22 km/h . Mar: 20 km/h . Apr: 19 km/h . May: 17 km/h . Jun: 15 km/h . Jul: 14 km/h . Aug: 16 km/h . Sep: 16 km/h . Oct: 20 km/h . Nov: 22 km/h . Dec: 23 km/h .
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 6°C . Feb: 5°C . Mar: 4°C . Apr: 6°C . May: 10°C . Jun: 15°C . Jul: 21°C . Aug: 24°C . Sep: 23°C . Oct: 19°C . Nov: 14°C . Dec: 9°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 5. Apr: UV 5. May: UV 6. Jun: UV 6. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Muroran has a population of approximately 96.2K.
The best months to visit Muroran are May, June, July, August, September, when temperatures are pleasant and rainfall is lower.
Muroran receives approximately 1219mm of rainfall annually across 136 rainy days.
Muroran is located in Japan, in the Asia region.