Current sea water temperature:
+83.3°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: | 84.1°F |
| more information | |
14 days
forecast
forecast
| Willemstad |
monthly
weather
weather
| Willemstad |
Sea water temperature for the last 10 days:
| September 24 | 83.3°F | September 19 | 83.1°F |
| September 23 | 83.3°F | September 18 | 83.5°F |
| September 22 | 83.3°F | September 17 | 82.9°F |
| September 21 | 83.7°F | September 16 | 82.9°F |
| September 20 | 83.5°F | September 15 | 83.3°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:
2026
2025
2024
The average sea water temperature in September of 2026 was 83.4°F. The highest and lowest sea temperatures during the month were 83.7°F and 82.8°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: 21:43
September 25, friday
0000
75°F
W
4 mph
4 mph
0300
73°F
NW
2 mph
2 mph
0600
73°F
N
2 mph
2 mph
0900
82°F
NW
6 mph
6 mph
1200
99°F
NW
6 mph
6 mph
1500
93°F
SW
14 mph
14 mph
1800
84°F
W
9 mph
9 mph
2100
77°F
W
4 mph
4 mph
