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Muroran
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Best time to visit Muroran
Data source：Meteostat
Last updated：2025-09
Weather in Muroran throughout the year
- Spring (March–May): Average 2.6–11.9°C, cold climate with occasional snowfall, gradually becoming milder. March and April remain relatively cold, warming up in May. Common activities: Flower viewing (mainly not cherry blossoms), outdoor excursions (be mindful of weather changes). Recommended clothing: Warm coat, sweater, scarf, hat.
- Summer (June–August): Average 16.0–22.8°C, warm and humid climate with more rainfall, especially in August. Common activities: Beach activities, mountain hiking (be mindful of weather changes and sun protection). Recommended clothing: Light and breathable clothing, rain gear.
- Autumn (September–November): Average 7.2–20.0°C, pleasant climate, but with large temperature differences between day and night, and more rainfall. Common activities: Maple leaf viewing, outdoor leisure activities. Recommended clothing: Light jacket, long-sleeved clothing.
- Winter (December–February): Average -1.7–-0.2°C, cold climate with light snowfall but low temperatures, requiring attention to cold protection. Common activities: Skiing (depending on snow conditions), indoor activities. Recommended clothing: Thick warm coat, warm hat, gloves, scarf, waterproof and windproof clothing.
Weather in Muroran
Annual average temperature: approx. 9.7°C / Annual rainfall: approx. 1146 mm / Summer humidity: 70%–80% / Rainiest month: August
Muroran weather by month
Month
Temperature (°C)
Rainfall (mm)
January
-1.7°C
62.5
February
-1.2°C
29.6
March
2.6°C
53.2
April
8.1°C
53.1
May
11.9°C
66.8
June
16°C
149.2
July
21.4°C
116.1
August
22.8°C
218.8
September
20°C
166.8
October
13.8°C
118.4
November
7.2°C
73.2
December
-0.2°C
38.6
7-day weather forecast for Muroran
11/9
Monday
Blowing snow
4.8°C/0.5°C
11/10
Tuesday
Blowing snow
2.8°C/-0.8°C
11/11
Wednesday
Sunny
6°C/-0.6°C
11/12
Thursday
Partly Cloudy
13.3°C/5.5°C
11/13
Friday
Sunny
13.5°C/8.1°C
11/14
Saturday
Partly Cloudy
9.7°C/5.6°C
11/15
Sunday
Patchy rain nearby
9.1°C/7.5°C
