World Resorts Japan Osaka Weather

Osaka Sea Temperature in December

Average sea water temperature in December:
+59.6°F
Minimum sea water temperature in December: 64.8°F
Maximum sea water temperature in December: 52.2°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 59.0°F. The highest and lowest sea temperatures during the month were 63.1°F and 55.9°F.

Monthly sea water temperature in Osaka, °F

Which Japan resorts have warmest sea in December?

Place name December 2025 December 2024
Okinawa 75.1°F 75.3°F
Nagasaki 66.7°F 64.1°F
Atami 65.9°F 65.8°F
Hakone 65.6°F 65.7°F
Kamakura 65.2°F 65.1°F
Fukuoka 62.2°F 62.2°F
Hiroshima 61.5°F 61.6°F
Kobe 60.1°F 60.1°F
Yokohama 59.7°F 60.4°F
Nagoya 59.4°F 60.7°F
Osaka 59.0°F 58.7°F
Nara 58.5°F 58.2°F
Tokyo 57.5°F 58.4°F
Kyoto 56.7°F 56.4°F
Noboribetsu 49.2°F 50.2°F
Sapporo 44.5°F 45.2°F

Best time for vacation in Osaka

Sunniest months:
May 16 days
August 16 days
October 15 days
Warmest months:
August 91.8 °F
July 88.5 °F
September 84.6 °F
Warmest sea temp:
August 82.6 °F
September 79.5 °F
July 79.3 °F
Coldest months:
January 46.6 °F
February 48.7 °F
December 50.9 °F
Rainiest months:
June 7 days
July 7 days
September 5 days
Windiest months:
January 7.4 mph
December 7.4 mph
February 7.3 mph

Osaka on a weather map

Osaka
+45°F
SW 4 mph
Feels like: +43°F
Precip.: 0%
Places in Japan:
Name
°F
+46°F
+52°F
+52°F
+39°F
+46°F
+55°F
+46°F
+39°F
+63°F
+45°F
+27°F
+50°F
+48°F
+48°F
+41°F
24 Hours Forecast
Osaka
Local time: 06:31
March 18, wednesday
0900
54°F
W
5 mph
1200
59°F
E
4 mph
1500
54°F
W
2 mph
1800
52°F
W
8 mph
2100
52°F
W
6 mph
March 19, thursday
0000
54°F
W
4 mph
0300
55°F
E
8 mph
0600
54°F
SE
6 mph
Units of measurement: °C / °F