Current sea water temperature:
+83.5°F
| Minimum sea water temperature in September: | 86.5°F |
| Maximum sea water temperature in September: | 81.9°F |
| Average sea water temperature in September: | 84.2°F |
| more information | |
14 days
forecast
forecast
| Willemstad |
monthly
weather
weather
| Willemstad |
Sea water temperature for the last 10 days:
| September 4 | 83.5°F | August 30 | 83.3°F |
| September 3 | 83.7°F | August 29 | 83.1°F |
| September 2 | 83.1°F | August 28 | 83.3°F |
| September 1 | 83.7°F | August 27 | 83.5°F |
| August 31 | 82.9°F | August 26 | 83.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Willemstad?
Based on the data about daily sea water temperature for the last three years the warmest sea in Willemstad was noticed in October, September and November.
Monthly Sea Temperatures in Willemstad, °F
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 85.4°F. The highest and lowest sea temperatures during the month were 86.2°F and 84.2°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 84.6°F. The highest and lowest sea temperatures during the month were 85.6°F and 83.7°F.
Sea water temperature in November, °F
Show year:
2025
2024
2023
The average sea water temperature in November of 2025 was 83.4°F. The highest and lowest sea temperatures during the month were 84.6°F and 82.0°F.
current
weather
weather
| Willemstad |
weather in
September
September
| Willemstad |
Best time for vacation in Willemstad
Willemstad on a weather map
24 Hours Forecast
Willemstad
Local time: 13:47
September 04, friday
1500
97°F
SW
14 mph
14 mph
1800
84°F
SW
14 mph
14 mph
2100
77°F
W
7 mph
7 mph
September 05, saturday
0000
77°F
W
2 mph
2 mph
0300
75°F
NW
2 mph
2 mph
0600
73°F
N
2 mph
2 mph
0900
82°F
NW
6 mph
6 mph
1200
95°F
NW
7 mph
7 mph
