Measurements:
°C
°F
Fukuoka
76°F
S 13 mph
Feels like: 80°F
Precip: 42%
World Resorts Japan Fukuoka Weather

Fukuoka Sea Water Temperature

Current Sea Water Temperature:
+85.8°F
Maximum Sea Water Temperature in September: 90.0°F
Minimum Sea Water Temperature in September: 76.4°F
Average water temperature in September: 82.1°F

Sea Water Temperature for the Last 10 Days:

September 08 85.8°F September 03 88.8°F
September 07 86.4°F September 02 88.0°F
September 06 87.2°F September 01 88.0°F
September 05 88.0°F August 31 88.4°F
September 04 88.2°F August 30 89.0°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Fukuoka was 88.8°F. The maximum and minimum values were 85.6°F and 91.6°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: 2026 2025 2024

The average sea surface temperature in July 2026 for Fukuoka was 85.3°F. The maximum and minimum values were 77.6°F and 92.2°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 93.5 °F
July 90.8 °F
September 86.0 °F
Warmest sea temperature:
August 86.1 °F
September 82.0 °F
July 81.8 °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 8 days
The most windy months:
January 9 mph
February 9 mph
December 8 mph

Fukuoka on the Weather Map

Japan Resorts:
NAME
Atami +78
Fukuoka +76
Hakone +84
Hiroshima +74
Kamakura +84
Kobe +78
Kyoto +78
Nagasaki +80
Nagoya +80
Nara +78
Okinawa +80
Osaka +80
Sapporo +58
Tokyo +80
Yokohama +84
24 Hours Weather Forecast
Fukuoka
Local time: 04:50
09 sep, wednesday
0600 76°F
S
13 mph
0900 76°F
S
13 mph
1200 82°F
SW
16 mph
1500 80°F
SW
16 mph
1800 76°F
SW
12 mph
2100 76°F
SW
9 mph
10 sep, thursday
0000 74°F
S
7 mph
0300 70°F
S
6 mph