Measurements:
°C
°F
Fukuoka
84°F
N 4 mph
Feels like: 92°F
Precip: 18%
World Resorts Japan Fukuoka Weather

Fukuoka Sea Water Temperature

Current Sea Water Temperature:
+79.0°F
Maximum Sea Water Temperature in July: 90.0°F
Minimum Sea Water Temperature in July: 73.2°F
Average water temperature in July: 81.5°F

Sea Water Temperature for the Last 10 Days:

July 06 79.0°F July 01 77.6°F
July 05 77.6°F June 30 77.0°F
July 04 77.6°F June 29 76.8°F
July 03 78.0°F June 28 75.4°F
July 02 77.6°F June 27 75.4°F

When is the Warmest Sea for Fukuoka?

According to our data for the last three years for Fukuoka the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Fukuoka was 89.1°F. The maximum and minimum values were 85.2°F and 91.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Fukuoka was 86.9°F. The maximum and minimum values were 83.0°F and 89.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Fukuoka was 85.1°F. The maximum and minimum values were 81.0°F and 90.0°F respectively.

Best Time to Visit Fukuoka
The most sunny months:
May 15 days
October 14 days
August 13 days
The most warm months:
August 93.4 °F
July 90.7 °F
September 86.0 °F
Warmest sea temperature:
August 85.9 °F
September 82.0 °F
July 81.5 °F
The most cold months:
January 47.9 °F
February 49.9 °F
December 51.7 °F
The most rainy months:
June 10 days
July 10 days
August 9 days
The most windy months:
January 9 mph
February 9 mph
December 8 mph

Fukuoka on the Weather Map

Japan Resorts:
NAME
Atami +74
Fukuoka +84
Hakone +76
Hiroshima +80
Kamakura +76
Kobe +78
Kyoto +78
Nagasaki +84
Nagoya +74
Noboribetsu +66
Okinawa +86
Osaka +80
Sapporo +74
Tokyo +78
Yokohama +76
24 Hours Weather Forecast
Fukuoka
Local time: 08:02
07 jul, tuesday
0900 84°F
N
4 mph
1200 90°F
NE
2 mph
1500 90°F
E
3 mph
1800 86°F
NE
1 mph
2100 80°F
N
2 mph
08 jul, wednesday
0000 78°F
N
2 mph
0300 76°F
N
4 mph
0600 76°F
N
4 mph