Isahaya

Isahaya Shi, Nagasaki Prefecture, Japan

Current Weather

21°

Rain

Feels Like: 19°

Min: 20°

Max: 22°

The next few hours will be humid and overcast, with today reaching 22°C and dropping to 22°C. The coming days will be rain throughout the day.

Unlock Historical Data

Compare today's weather with yesterday's data and track temperature trends over time.

Upgrade Now

Hourly Forecast

21° 21° 21° 21° 21° 22° 22° 22° 22° 22° 22° 22° 22° 22° 22° 22° 22° 22° 22° 22° 23° 23° 23° 23° 23° 24° 24° 24° 24° 24° 24° 24° 24° 24° 24° 24° 24° 24° 24° 24° 24° 23° 23° 23° 24° 24° 24° 24°
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
99%
99%
98%
98%
98%
98%
98%
98%
98%
99%
99%
100%
100%
100%
100%
98%
96%
94%
92%
90%
88%
86%
84%
82%
81%
81%
80%
77%
75%
72%
73%
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
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
Thursday

Daylight Hours

05:16

Sunrise

19:26

Sunset

14 hours 9 minutes of sunlight today

Moon

Waxing Gibbous

66% illuminated

13:36

Moonrise

00:56

Moonset

Daily Forecast

Today

20°
22°

Wednesday

22°
24°

Thursday

23°
25°

Friday

22°
24°

Saturday

22°
27°

Sunday

22°
26°

Monday

21°
24°

Air Quality Data Available

Upgrade to access real-time air quality data for Isahaya.

Upgrade Now

UV Index

No protection needed
0 Low
Low Extreme

Humidity

91% Very Humid
Low High

Frequently asked questions about weather in Isahaya

How warm does it get in Isahaya?

The warmest month in Isahaya is August, with average high temperatures of 29°C. The average temperature during this period is around 28°C.

How cold does it get in Isahaya?

The coldest month in Isahaya is January, with average low temperatures of 7°C. The average temperature during this period is around 8°C.

What is the wettest time of year in Isahaya?

The wettest month in Isahaya is June, with an average of 419mm of precipitation.

What is the driest time of year in Isahaya?

The driest month in Isahaya is January, with an average of 84mm of precipitation.

View full climate insights for Isahaya →

Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)

Confirm