Current sea water temperature:
+40.6°F
| Minimum sea water temperature in January: | 48.2°F |
| Maximum sea water temperature in January: | 39.0°F |
| Average sea water temperature in January: | 43.2°F |
| more information | |
14 days
forecast
forecast
| Rotterdam |
monthly
weather
weather
| Rotterdam |
Sea water temperature for the last 10 days:
| January 13 | 40.6°F | January 8 | 41.0°F |
| January 12 | 41.0°F | January 7 | 41.2°F |
| January 11 | 41.0°F | January 6 | 41.0°F |
| January 10 | 41.2°F | January 5 | 41.2°F |
| January 9 | 41.2°F | January 4 | 42.3°F |
Monthly sea water temperature, °F
When is the warmest sea in Rotterdam?
Based on the data about daily sea water temperature for the last three years the warmest sea in Rotterdam was noticed in August, July and September.
Monthly Sea Temperatures in Rotterdam, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 67.9°F. The highest and lowest sea temperatures during the month were 68.9°F and 66.9°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 67.1°F. The highest and lowest sea temperatures during the month were 68.5°F and 65.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 64.5°F. The highest and lowest sea temperatures during the month were 67.3°F and 60.6°F.
current
weather
weather
| Rotterdam |
weather in
January
January
| Rotterdam |
Best time for vacation in Rotterdam
Rotterdam on a weather map
Places in Netherlands:
Name
°F
24 Hours Forecast
Rotterdam
Local time: 18:28
January 13, tuesday
2100
48°F
NE
14 mph
14 mph
January 14, wednesday
0000
46°F
NE
12 mph
12 mph
0300
46°F
NE
12 mph
12 mph
0600
45°F
SE
7 mph
7 mph
0900
43°F
E
6 mph
6 mph
1200
45°F
E
6 mph
6 mph
1500
45°F
E
4 mph
4 mph
1800
39°F
N
1 mph
1 mph
