Current Sea Water Temperature:
+51.0°F
| Maximum Sea Water Temperature in January: | 61.6°F |
| Minimum Sea Water Temperature in January: | 47.8°F |
| Average water temperature in January: | 55.6°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| January 19 | 51.0°F | January 14 | 53.6°F |
| January 18 | 52.0°F | January 13 | 54.2°F |
| January 17 | 51.8°F | January 12 | 54.2°F |
| January 16 | 53.0°F | January 11 | 54.2°F |
| January 15 | 53.8°F | January 10 | 54.4°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
The average sea surface temperature in August 2025 for Osaka was 89.4°F. The maximum and minimum values were 86.8°F and 91.0°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Osaka was 86.1°F. The maximum and minimum values were 78.4°F and 91.2°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Osaka was 87.8°F. The maximum and minimum values were 82.8°F and 90.2°F respectively.
Japan Resorts:
NAME
F°
| Fukuoka |  |
+52 |
| Hakone |  |
+44 |
| Hiroshima | |
+46 |
| Kamakura | |
+46 |
| Kobe | |
+50 |
| Kyoto | |
+48 |
| Nagasaki | |
+54 |
| Nagoya | |
+52 |
| Nara | |
+46 |
| Noboribetsu | |
+24 |
| Okinawa | |
+68 |
| Osaka | |
+50 |
| Sapporo | |
+14 |
| Tokyo | |
+44 |
| Yokohama | |
+46 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Osaka
Local time: 18:06
19 jan, monday
| 2100 |  |
48°F | N 2 mph |
20 jan, tuesday
| 0000 |  |
48°F | N 2 mph |
| 0300 | |
48°F | NE 4 mph |
| 0600 | |
48°F | NE 4 mph |
| 0900 |  |
50°F | E 7 mph |
| 1200 | |
50°F | SE 7 mph |
| 1500 | |
48°F | SE 14 mph |
| 1800 | |
40°F | S 17 mph |