26.08
wed
wed
Day
75°F
NW 11 mph
Precip.
3%
3%
Night
70°F
W 7 mph
Precip.
6%
6%
27.08
thu
thu
Day
73°F
N 10 mph
Precip.
21%
21%
Night
66°F
N 6 mph
Precip.
74%
74%
28.08
fri
fri
Day
72°F
NE 7 mph
Precip.
12%
12%
Night
64°F
NE 9 mph
Precip.
13%
13%
29.08
sat
sat
Day
68°F
NE 17 mph
Precip.
25%
25%
Night
64°F
NE 15 mph
Precip.
23%
23%
30.08
sun
sun
Day
70°F
NE 14 mph
Precip.
14%
14%
Night
61°F
NE 6 mph
Precip.
67%
67%
31.08
mon
mon
Day
64°F
NE 17 mph
Precip.
55%
55%
Night
59°F
E 11 mph
Precip.
15%
15%
01.09
tue
tue
Day
64°F
E 15 mph
Precip.
14%
14%
Night
63°F
NE 14 mph
Precip.
41%
41%
sea water
temperature
temperature
| Rotterdam |
monthly
weather
weather
| Rotterdam |
current
weather
weather
| Rotterdam |
14 days
forecast
forecast
| Rotterdam |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 69.9°F. The highest and lowest sea temperatures during the month were 71.6°F and 68.0°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.
Air temperature in Rotterdam, °F
Precipitation total in Rotterdam, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Rotterdam
Rotterdam on a weather map
Places in Netherlands:
Name
°F
24 Hours Forecast
Rotterdam
Local time: 11:24
August 26, wednesday
1200
75°F
NW
11 mph
11 mph
1500
81°F
NW
9 mph
9 mph
1800
79°F
NW
7 mph
7 mph
2100
72°F
W
4 mph
4 mph
August 27, thursday
0000
70°F
W
7 mph
7 mph
0300
66°F
W
8 mph
8 mph
0600
64°F
W
8 mph
8 mph
0900
66°F
W
8 mph
8 mph
