Measurements:
°C
°F
Fukuoka
80°F
SE 5 mph
Feels like: 84°F
Precip: 68%
World Resorts Japan Fukuoka Weather

Fukuoka Sea Water Temperature

Current Sea Water Temperature:
+75.8°F
Maximum Sea Water Temperature in May: 75.8°F
Minimum Sea Water Temperature in May: 61.2°F
Average water temperature in May: 66.9°F

Sea Water Temperature for the Last 10 Days:

May 19 75.8°F May 14 71.2°F
May 18 75.6°F May 13 69.8°F
May 17 73.4°F May 12 70.2°F
May 16 72.8°F May 11 68.4°F
May 15 72.2°F May 10 68.0°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 +80
Fukuoka +80
Hakone +78
Hiroshima +70
Kamakura +74
Kobe +74
Kyoto +74
Nagasaki +78
Nagoya +82
Nara +76
Okinawa +80
Osaka +76
Sapporo +64
Tokyo +86
Yokohama +76
24 Hours Weather Forecast
Fukuoka
Local time: 14:27
20 may, wednesday
1500 80°F
SE
5 mph
1800 76°F
SW
1 mph
2100 74°F
N
5 mph
21 may, thursday
0000 72°F
N
5 mph
0300 72°F
N
7 mph
0600 72°F
NE
7 mph
0900 72°F
NE
7 mph
1200 74°F
NE
7 mph