Measurements:
°C
°F
Osaka
56°F
SW 2 mph
Feels like: 56°F
Precip: 23%
World Resorts Japan Osaka Weather

Osaka Sea Water Temperature

Current Sea Water Temperature:
+71.4°F
Maximum Sea Water Temperature in November: 75.2°F
Minimum Sea Water Temperature in November: 62.0°F
Average water temperature in November: 69.0°F

Sea Water Temperature for the Last 10 Days:

November 12 71.4°F November 07 75.2°F
November 11 73.0°F November 06 75.2°F
November 10 73.0°F November 05 71.4°F
November 09 73.0°F November 04 72.0°F
November 08 73.4°F November 03 72.4°F

When is the Warmest Sea for Osaka?

According to our data for the last three years for Osaka 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 Osaka was 88.1°F. The maximum and minimum values were 85.4°F and 91.0°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Osaka was 84.6°F. The maximum and minimum values were 82.2°F and 89.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Osaka was 84.6°F. The maximum and minimum values were 76.8°F and 91.4°F respectively.

Best Time to Visit Osaka
The most sunny months:
May 16 days
August 16 days
October 15 days
The most warm months:
August 96.3 °F
July 92.8 °F
September 88.0 °F
Warmest sea temperature:
August 86.3 °F
September 82.9 °F
July 82.7 °F
The most cold months:
January 46.3 °F
February 48.5 °F
December 51.0 °F
The most rainy months:
June 7 days
July 6 days
September 6 days
The most windy months:
January 7 mph
December 7 mph
February 7 mph

Osaka on the Weather Map

Japan Resorts:
NAME
F°
Atami +52
Fukuoka +56
Hakone +50
Hiroshima +58
Kamakura +52
Kobe +58
Kyoto +52
Nagasaki +64
Nagoya +52
Noboribetsu +42
Okinawa +74
Osaka +56
Sapporo +40
Tokyo +52
Yokohama +52
24 Hours Weather Forecast
Osaka
Local time: 23:24
13 nov, friday
0000 56°F
SW
2 mph
0300 56°F
SW
2 mph
0600 54°F
SW
4 mph
0900 62°F
SW
2 mph
1200 70°F
N
0 mph
1500 70°F
E
2 mph
1800 64°F
NE
2 mph
2100 60°F
S
1 mph