Measurements:
°C
°F
CURRENT WEATHER
18:07
Willemstad
88°F
W 14 mph
Feels like: 92°F
Precip: 11%
World Resorts Curacao Willemstad Weather

7 Day Weather Forecast

09.08
tue
DAY
100°F
W 14 mph
precip
1%
NIGHT
78°F
W 2 mph
precip
42%
09.09
wed
DAY
100°F
W 13 mph
precip
6%
NIGHT
78°F
W 3 mph
precip
45%
09.10
thu
DAY
102°F
W 9 mph
precip
6%
NIGHT
80°F
NW 2 mph
precip
43%
09.11
fri
DAY
102°F
W 9 mph
precip
8%
NIGHT
80°F
NW 2 mph
precip
31%
09.12
sat
DAY
100°F
W 14 mph
precip
5%
NIGHT
80°F
W 6 mph
precip
38%
09.13
sun
DAY
94°F
W 12 mph
precip
17%
NIGHT
80°F
W 4 mph
precip
47%
09.14
mon
DAY
96°F
W 9 mph
precip
10%
NIGHT
76°F
N 2 mph
precip
61%

Willemstad Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Willemstad was 29.2°F. The maximum and minimum values were 28.7°F and 29.8°F respectively.

Willemstad on the Weather Map

Best Time to Visit Willemstad
The most sunny months:
September 18 days
August 17 days
July 14 days
The most warm months:
September 91.7 °F
August 91.1 °F
October 90.9 °F
Warmest sea temperature:
October 88.2 °F
September 88.0 °F
November 87.5 °F
The most cold months:
February 85.1 °F
March 85.5 °F
January 85.8 °F
The most rainy months:
November 9 days
December 7 days
October 7 days
The most windy months:
June 21 mph
July 20 mph
May 20 mph
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