World Resorts Netherlands Rotterdam Weather

Rotterdam Sea Temperature in September

Average sea water temperature in September:
+64.8°F
Minimum sea water temperature in September: 71.6°F
Maximum sea water temperature in September: 59.9°F

Daily 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.

Monthly sea water temperature in Rotterdam, °F

Which Netherlands resorts have warmest sea in September?

Place name September 2025 September 2024
Aruba 84.2°F 84.7°F
Breda 65.4°F 67.3°F
Rotterdam 64.5°F 65.9°F
Hague 64.5°F 65.9°F
Utrecht 63.2°F 64.3°F
Amsterdam 62.9°F 64.5°F
Groningen 61.3°F 63.4°F

Best time for vacation in Rotterdam

Sunniest months:
June 12 days
August 12 days
April 11 days
Warmest months:
August 71.5 °F
July 70.9 °F
June 68.3 °F
Warmest sea temp:
August 67.1 °F
July 65.3 °F
September 64.8 °F
Coldest months:
January 43.0 °F
February 44.4 °F
December 45.8 °F
Rainiest months:
August 4 days
December 4 days
October 4 days
Windiest months:
December 13.0 mph
February 12.5 mph
January 12.2 mph

Rotterdam on a weather map

Current weather
06:01
Rotterdam
+43°F
W 7 mph
Feels like: +37°F
Precip.: 0%
Places in Netherlands:
Name
°F
Amsterdam
+43°F
Aruba
+81°F
Breda
+41°F
Hague
+45°F
Groningen
+41°F
Maastricht
+39°F
Rotterdam
+43°F
Utrecht
+41°F
Eindhoven
+43°F
24 Hours Forecast
Rotterdam
Local time: 06:01
December 22, monday
0900
41°F
W
7 mph
1200
45°F
W
8 mph
1500
46°F
W
9 mph
1800
43°F
W
7 mph
2100
41°F
W
9 mph
December 23, tuesday
0000
39°F
W
8 mph
0300
39°F
W
9 mph
0600
37°F
W
11 mph
Units of measurement: °C / °F