Rumoi

Rumoi Shi, Hokkaido, Japan

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Current Weather

21°

Mostly Clear

Feels Like: 20°

Min: 12°

Max: 22°

The next few hours will be mostly clear, with today reaching 22°C and dropping to 13°C. The coming days will be drizzle

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Hourly Forecast

21° 21° 22° 22° 21° 21° 20° 19° 18° 17° 16° 15° 14° 14° 13° 13° 13° 13° 13° 13° 13° 16° 19° 22°
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11am
12pm
1pm
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7pm
8pm
9pm
10pm
11pm
12am
1am
2am
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9am
Today
Tomorrow

Daylight Hours

05:20

Sunrise

17:34

Sunset

12 hours 13 minutes of sunlight today

Moon

Waxing Crescent

10:46

Moonrise

19:39

Moonset

Daily Forecast

Today

12°
22°

Thursday

13°
24°

Friday

15°
25°

Saturday

12°
24°

Sunday

14°
25°

Monday

16°
23°

Tuesday

14°
21°

Wednesday

11°
21°

Thursday

13°
20°

Friday

14°
18°

Air Quality Data Available

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UV Index

Wear sunscreen
5 Moderate
Low Extreme

Humidity

51% Comfortable
Low High

Weather in Rumoi today, September 16, 2026

Expect a muted, overcast feel in Rumoi on September 16, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. Morning skies stay relatively clear, holding cloud close to 33% near 11:00. The early part of the day favours being outside.

The temperature range runs from about 12°C up to 22°C. The air stays humid, with relative humidity between 48% and 79% and the peak around 23:00. Expect gentle winds, highest near 12:00 at 4.5 km/h.

Expect persistent cloud later on, with amounts around 100% by 21:00. Sunshine remains the exception, not the rule. Expect visibility around 16.1 km. Expect sunrise at 05:20, sunset at 17:34, and 12 hours 13 minutes of sunlight today overall.

Overall, Rumoi on September 16, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 22°C.

Frequently asked questions about weather in Rumoi

How warm does it get in Rumoi?

The warmest month in Rumoi is August, with average high temperatures of 25°C. The average temperature during this period is around 22°C.

How cold does it get in Rumoi?

The coldest month in Rumoi is January, with average low temperatures of -8°C. The average temperature during this period is around -5°C.

What is the wettest time of year in Rumoi?

The wettest month in Rumoi is August, with an average of 202mm of precipitation.

What is the driest time of year in Rumoi?

The driest month in Rumoi is April, with an average of 74mm of precipitation.

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Metric (°C, km/h)