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Weather in Karatsu, Japan 🇯🇵

Weather Forecast in Karatsu

Current Weather in Karatsu

Sunny
32°C
Feels like 38°C. Sunny.
🌬️ 16 km/h WSW
💧 67% Humidity
🧭 1008 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 3.9
🌡️ Dew Point: 23°C
🌅 Sunrise: 05:25 AM
🌇 Sunset: 07:27 PM
Map Overlays:

Karatsu currently sits at 32°C, sunny, feeling like 38°C. Expect 67% humidity and winds of about 16 km/h, and the UV index is 4 (moderate). The next few days in Karatsu look set for about 25°C up to 32°C.

Hourly Forecast for Karatsu

17:00
Sunny
31°
4%
18:00
Sunny
30°
5%
19:00
Sunny
28°
7%
20:00
Clear
28°
8%
21:00
Clear
27°
9%
22:00
Clear
27°
9%
23:00
Clear
26°
10%
00:00
Clear
26°
10%
01:00
Clear
26°
11%
02:00
Clear
26°
11%
03:00
Clear
26°
12%
04:00
Clear
25°
12%
05:00
Clear
25°
12%
06:00
Sunny
26°
11%
07:00
Sunny
27°
9%
08:00
Sunny
28°
7%
09:00
Sunny
30°
5%
10:00
Sunny
30°
4%
11:00
Sunny
31°
4%
12:00
Sunny
31°
3%
13:00
Sunny
31°
4%
14:00
Sunny
31°
4%
15:00
Sunny
31°
5%
16:00
Sunny
30°
6%

14-Day Forecast for Karatsu

Tue, Jul 21
Sunny Sunny
32° / 26°
Wed, Jul 22
Sunny Sunny
31° / 25°
Thu, Jul 23
Sunny Sunny
31° / 25°
Fri, Jul 24
Sunny Sunny
31° / 26°
Sat, Jul 25
Sunny Sunny
30° / 26°
Sun, Jul 26
Sunny Sunny
30° / 26°
Mon, Jul 27
Sunny Sunny
30° / 26°
Tue, Jul 28
Sunny Sunny
31° / 26°
Wed, Jul 29
Partly Cloudy Partly Cloudy
31° / 26°
Thu, Jul 30
Sunny Sunny
31° / 26°
Fri, Jul 31
Sunny Sunny
31° / 25°
Sat, Aug 01
Sunny Sunny
31° / 26°
Sun, Aug 02
Patchy rain nearby Patchy rain nearby
31° / 25°
Mon, Aug 03
Sunny Sunny
31° / 26°

Additional Forecasts for Karatsu

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 126.0 μg/m³
O₃ (Ozone) 95.0 μg/m³
NO₂ (Nitrogen Dioxide) 1.4 μg/m³
SO₂ (Sulphur Dioxide) 2.7 μg/m³
PM2.5 (Fine particles) 12.0 μg/m³
PM10 (Coarse particles) 15.8 μg/m³

Historical Weather

Weather Forecasts for Other Cities in Japan

Browse Weather in Japan by cities in alphabetical order:

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Weather in Japan ›

Best Time to Be Outside in Karatsu Tomorrow

There is no good daylight window left in Karatsu today. Tomorrow, the most comfortable window looks like 06:00 to 08:00, when it is around 27°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Karatsu

What is the temperature in Karatsu right now?

Karatsu is sitting at 32°C (90°F) right now, sunny (feels like 38°C).

What's the weather like in Karatsu right now?

Right now Karatsu has Sunny, humidity 67%, wind 16 km/h WSW.

What is today's forecast for Karatsu?

Today in Karatsu: high 32°C, low 26°C, sunny. Chance of rain: 17%.

What is the 7-day weather forecast for Karatsu?

Daily highs and lows for Karatsu:

  • 2026-07-21: 32°C / 26°C
  • 2026-07-22: 31°C / 25°C
  • 2026-07-23: 31°C / 25°C
  • 2026-07-24: 31°C / 26°C
  • 2026-07-25: 30°C / 26°C
  • 2026-07-26: 30°C / 26°C
  • 2026-07-27: 30°C / 26°C
Is it going to rain in Karatsu today?

There is a 17% chance of rain in Karatsu today. Total expected precipitation: 0.1 mm.

What is the wind speed in Karatsu right now?

Wind in Karatsu is currently 16 km/h (10 mph) from the WSW.

What is the UV index in Karatsu right now?

The UV index in Karatsu is currently 3.9 (moderate). Sun protection is recommended when the index is 3 or higher.

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