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- 3h
3-hourly view
3h 1h
General Sea & Surf
Icon
Overcast with light rain
Overcast with rain
Overcast
Overcast
Overcast with light rain
Overcast with light rain
Mixed with showers
Partly cloudy
°F
54°
53°
55°
57°
55°
53°
53°
53°
°F
52°
50°
52°
54°
51°
49°
50°
51°
NE
ENE
NE
NE
NNE
NNE
N
N
mph
4-9
4-10
4-8
5-11
7-19
7-20
5-15
3-11
in
0.06
0.13
-
-
< 0.04
0.06
< 0.04
-
%
65%
75%
75%
30%
60%
75%
60%
10%
in

00:00 to 01:00:
5% chance of precipitation in the area.
0″ are predicted by our local models.

01:00 to 02:00:
15% chance of precipitation in the area.
0″ are predicted by our local models.

02:00 to 03:00:
65% chance of precipitation in the area.
0.06″ are predicted by our local models.

03:00 to 04:00:
65% chance of precipitation in the area.
0.09″ are predicted by our local models.

04:00 to 05:00:
70% chance of precipitation in the area.
0.03″ are predicted by our local models.

05:00 to 06:00:
75% chance of precipitation in the area.
0″ are predicted by our local models.

06:00 to 07:00:
75% chance of precipitation in the area.
0″ are predicted by our local models.

07:00 to 08:00:
55% chance of precipitation in the area.
0″ are predicted by our local models.

08:00 to 09:00:
35% chance of precipitation in the area.
0″ are predicted by our local models.

09:00 to 10:00:
20% chance of precipitation in the area.
0″ are predicted by our local models.

10:00 to 11:00:
25% chance of precipitation in the area.
0″ are predicted by our local models.

11:00 to 12:00:
30% chance of precipitation in the area.
0″ are predicted by our local models.

12:00 to 13:00:
35% chance of precipitation in the area.
0″ are predicted by our local models.

13:00 to 14:00:
45% chance of precipitation in the area.
0″ are predicted by our local models.

14:00 to 15:00:
60% chance of precipitation in the area.
0.01″ are predicted by our local models.

15:00 to 16:00:
75% chance of precipitation in the area.
0.01″ are predicted by our local models.

16:00 to 17:00:
75% chance of precipitation in the area.
0.02″ are predicted by our local models.

17:00 to 18:00:
70% chance of precipitation in the area.
0.02″ are predicted by our local models.

18:00 to 19:00:
60% chance of precipitation in the area.
0.02″ are predicted by our local models.

19:00 to 20:00:
45% chance of precipitation in the area.
0.01″ are predicted by our local models.

20:00 to 21:00:
25% chance of precipitation in the area.
0″ are predicted by our local models.

21:00 to 22:00:
10% chance of precipitation in the area.
0″ are predicted by our local models.

22:00 to 23:00:
5% chance of precipitation in the area.
0″ are predicted by our local models.

23:00 to 00:00:
5% chance of precipitation in the area.
0″ are predicted by our local models.

12.4 mi
Sea/surf forecast
Significant wave height (m)
0.9
0.9
0.8
0.8
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.6
0.6
0.6
0.5
0.5
Significant wave direction in which the waves move
Water temperature (°F)
59°
58°
58°
59°
59°
59°
59°
59°
Swell wave height (m)
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
0.6
0.6
0.5
0.5
0.6
0.6
0.5
0.5
Swell wave period (s)
7.1
7.1
6.8
6.8
6.7
6.7
6.3
6.3
5.9
5.9
5.7
5.7
5
5
4.8
4.8
Wind wave direction in which the waves move
Wind wave height (m)
0.1
0.1
0
0
0.1
0.1
0.2
0.2
0.2
0.2
0.3
0.3
0.1
0.1
0
0
Wind wave period (s)
1.8
1.3
1.7
2
2
2.4
1.7
1
Overcast with light rain
Overcast with rain
Overcast
Overcast
Overcast with light rain
Overcast with light rain
Mixed with showers
Partly cloudy
54°
53°
55°
57°
55°
53°
53°
53°
52°
50°
52°
54°
51°
49°
50°
51°
NE
4-9
ENE
4-10
NE
4-8
NE
5-11
NNE
7-19
NNE
7-20
N
5-15
N
3-11
0.06 in
65%
0.13 in
75%
-
75%
-
30%
< 0.04 in
60%
0.06 in
75%
< 0.04 in
60%
-
10%
The weather forecast has medium predictability. Compare different forecasts with MultiModel.

Weather report for Karatsu

Overnight into Wednesday it will be cloudy and rainy. No more rain early in the day but the sky remains overcast. For the afternoon the weather is changing with a mix of clear and cloudy skies and a chance of showers. The sun will not be visible. There is a high chance of Precipitation near 70%. Temperatures as high as 57 °F are foreseen. The whole day blows a light breeze (4 to 8 mph). From time to time gusts could reach up to 21 mph. Winds blowing at night and in the morning from Northeast and during the afternoon from North. The weather forecast for Karatsu for Wednesday can be accurate in parts but deviations are expected. Check again for latest updates.

sun-icon
UV 6
▲ 06:06
▼ 18:41
Waxing gibbous moon (173°)
▲ 17:58
▼ 05:27

Pressure: 1011 hPa

Timezone: JST (UTC +09:00h)

Show more
The weather forecast has medium predictability. Compare different forecasts with MultiModel.

Weather report for Karatsu

Overnight into Wednesday it will be cloudy and rainy. No more rain early in the day but the sky remains overcast. For the afternoon the weather is changing with a mix of clear and cloudy skies and a chance of showers. The sun will not be visible. There is a high chance of Precipitation near 70%. Temperatures as high as 57 °F are foreseen. The whole day blows a light breeze (4 to 8 mph). From time to time gusts could reach up to 21 mph. Winds blowing at night and in the morning from Northeast and during the afternoon from North. The weather forecast for Karatsu for Wednesday can be accurate in parts but deviations are expected. Check again for latest updates.

sun-icon
UV 6
▲ 06:06
▼ 18:41
Waxing gibbous moon (173°)
▲ 17:58
▼ 05:27

Pressure: 1011 hPa

Timezone: JST (UTC +09:00h)

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Weather radar, Japan

Drizzle
Light
Moderate
Heavy
Very Heavy
Hail

The location marker is placed on Karatsu. Orange crosses indicate lightning. Data provided by nowcast.de (available in USA, Europe, Australia). Drizzle or light snow fall might be invisible for the radar. Precipitation intensity is colour coded, ranging from turquoise to red.

Hourly weather forecast for Karatsu

Our 5-day meteogram for Karatsu offers all weather information in 3 simple graphs: [More]
  • Temperature chart with weather pictograms. The yellow background indicates daylight.
  • Clouds in different altitudes: from few clouds (light grey) to overcast (dark grey). Dark blue bars show hourly precipitation and light blue showers. An asterisk indicates snow fall.
  • Forecasts for wind speeds are blue and for gusts are green. The arrowheads point in the same direction as the wind.

You can embed this meteogram into your own website. Customize it here.

Live satellite map, Japan

The location marker is placed on Karatsu. [More]

The real-time satellite image combines visible light during daytime with infrared radiation during nighttime. At night, the image is not dark as infrared radiation can detect temperature differences. Unfortunately, low clouds and fog are difficult to distinguish from ground temperatures and thus can be almost invisible during the night. Meteosat satellite images for Europe are updated in real-time every 5 minutes. GOES-16/GOES-17 (North & South America) and Himawari (Asia) images update every 10 minutes.

Precipitation is estimated from radar and satellites. Precipitation estimates from satellites are less accurate at night than during daytime.

© 2026 meteoblue, NOAA Satellites GOES-16 and EUMETSAT. Lightning data provided by nowcast.

More weather data

Wind Map

Wind Map

 Meteograms

Meteograms

 Where to go

where2go

 MultiModel

MultiModel
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