Koriyama

Fukushima Prefecture, Japan

Current Weather

16°60°

Clear

Feels Like: 17°62°

Min: 6°43°

Max: 17°62°

The next few hours will be mostly clear, with today reaching 17°C and dropping to 11°C. The coming days will be light rain

Hourly Forecast

15°59°16°61°16°61°17°62°17°62°15°60°14°57°12°54°12°54°12°53°11°52°11°52°11°52°11°52°11°52°12°53°12°54°12°54°13°55°13°56°14°58°15°59°16°60°16°61°
44%
44%
44%
66%
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
Today
Tomorrow

Want a closer look at the weather?

Premium adds minute-by-minute rain timing, yesterday comparisons, and more detail across Airpult.

Get Premium

Air Quality

36
Good

Air quality is satisfactory, and air pollution poses little or no risk.

GoodHazardous

Daylight Hours

06:01

Sunrise

16:43

Sunset

10 hours 42 minutes of sunlight today

Moon

15:04

Moonrise

03:28

Moonset

Daily Forecast

Today

6°43°
17°62°

Saturday

11°52°
17°62°

Sunday

16°61°
20°68°

Monday

14°57°
17°63°

Tuesday

12°53°
19°66°

Wednesday

8°46°
11°52°

Thursday

7°45°
13°56°

Friday

11°51°
14°57°

Saturday

7°44°
17°63°

Sunday

5°40°
8°46°

UV Index

Wear sunscreen
5Moderate
LowExtreme

Humidity

59%Comfortable
LowHigh

Looking at the night sky?

See moon phases, eclipses, and seasons for this year.

View astronomy

Current stargazing conditions?

See sky darkness, moon phase, and the best viewing window for Koriyama.

View stargazing score

Weather in Koriyama today, October 23, 2026

Cloud cover dominates in Koriyama on October 23, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. The opening hours look fair, as cloud stays near 12% around 11:00. Morning errands should face fewer weather interruptions.Cloud cover dominates in Koriyama on October 23, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. The opening hours look fair, as cloud stays near 12% around 11:00. Morning errands should face fewer weather interruptions.

Expect highs of 17°C and cooler readings close to 6°C. Moisture in the air spans 58%-88%, with the highest values around 23:00. A lighter breeze peaks around 12:00 near 8 km/h.Expect highs of 62°F and cooler readings close to 43°F. Moisture in the air spans 58%-88%, with the highest values around 23:00. A lighter breeze peaks around 12:00 near 5 mph.

Through the afternoon cloud remains the main feature, with cover near 94% around 23:00. Bright spells should stay limited even as the day wears on. Expect visibility around 16.1 km. Daylight runs from 06:01 to 16:43, lasting 10 hours 42 minutes of sunlight today.Through the afternoon cloud remains the main feature, with cover near 94% around 23:00. Bright spells should stay limited even as the day wears on. Expect visibility around 10 mi. Daylight runs from 06:01 to 16:43, lasting 10 hours 42 minutes of sunlight today.

In short, cloud leads the story in Koriyama on October 23, 2026; expect limited sun and a peak around 17°C.In short, cloud leads the story in Koriyama on October 23, 2026; expect limited sun and a peak around 62°F.

Frequently asked questions about weather in Koriyama

How warm does it get in Koriyama?

The warmest month in Koriyama is August, with average high temperatures of 29°C. The average temperature during this period is around 25°C.The warmest month in Koriyama is August, with average high temperatures of 84°F. The average temperature during this period is around 77°F.

How cold does it get in Koriyama?

The coldest month in Koriyama is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.The coldest month in Koriyama is January, with average low temperatures of 26°F. The average temperature during this period is around 32°F.

What is the wettest time of year in Koriyama?

The wettest month in Koriyama is July, with an average of 152 mm of precipitation.The wettest month in Koriyama is July, with an average of 6 in of precipitation.

What is the driest time of year in Koriyama?

The driest month in Koriyama is February, with an average of 61 mm of precipitation.The driest month in Koriyama is February, with an average of 2.4 in of precipitation.

View full climate insights for Koriyama →