Willemstad climate
Willemstad (Curacao) has a hot semi-arid climate (Köppen BSh). The average temperature over the year is 27 °C81 °F, and about 487 mm19 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Willemstad climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2781 | 2679 | 2780 | 411.6 |
| Feb | 2780 | 2678 | 2679 | 220.9 |
| Mar | 2780 | 2679 | 2679 | 100.4 |
| Apr | 2781 | 2679 | 2780 | 130.5 |
| May | 2882 | 2780 | 2781 | 180.7 |
| Jun | 2882 | 2781 | 2882 | 220.9 |
| Jul | 2883 | 2781 | 2882 | 271.0 |
| Aug | 2984 | 2882 | 2883 | 261.0 |
| Sep | 2984 | 2883 | 2984 | 451.8 |
| Oct | 2984 | 2883 | 2983 | 823.2 |
| Nov | 2983 | 2882 | 2883 | 1174.6 |
| Dec | 2882 | 2781 | 2781 | 642.5 |
| Year | 2984 | 2678 | 2781 | 48719 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 79% | 40% | 5.2 | 11:29 |
| Feb | 79% | 37% | 5.9 | 11:44 |
| Mar | 80% | 44% | 6.3 | 12:02 |
| Apr | 82% | 59% | 6.2 | 12:23 |
| May | 84% | 64% | 6.1 | 12:41 |
| Jun | 84% | 58% | 6.1 | 12:50 |
| Jul | 84% | 51% | 6.2 | 12:46 |
| Aug | 82% | 44% | 6.4 | 12:31 |
| Sep | 81% | 52% | 6.2 | 12:11 |
| Oct | 81% | 60% | 5.5 | 11:50 |
| Nov | 81% | 56% | 4.9 | 11:33 |
| Dec | 80% | 45% | 4.9 | 11:25 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Willemstad is like
The warmest month is September, with an average high of 29 °C84 °F and a low of 28 °C83 °F. The coldest is February, when highs average 27 °C80 °F and lows 26 °C78 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 2.4 °C4.4 °F.
Annual precipitation is moderate at about 487 mm19 in. The wettest three-month stretch is October–December, which brings 54% of the annual total. Months with less than 20 mm0.8 in on average: March–May. The wettest month is November (117 mm4.6 in), the driest is March (10 mm0.4 in).
Relative humidity ranges from 79% in February to 84% in June. The clearest skies (lowest average cloud amount, 37%) are typical of February. Average wind speed near the ground ranges from 20 km/h (13 mph) in October to 27 km/h (17 mph) in June. Daylight lasts from about 11.4 hours in December to 12.8 hours in June.
Best time to visit Willemstad
Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–July. Average highs then reach 27 °C80 °F to 28 °C83 °F. Precipitation is 10 mm0.4 in to 64 mm2.5 in per month.
The most challenging month is November, which is humid (81% relative humidity).
Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Willemstad
- Wetter months (September–January) — highs 2781 to 29 °C84 °F, lows 2679 to 28 °C83 °F, about 70 mm2.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
- Drier months (February–August) — highs 2780 to 29 °C84 °F, lows 2678 to 28 °C82 °F, about 20 mm0.8 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How Willemstad compares
The nearest larger place is Coro, about 117 km to the southwest. Compared with it, Willemstad has practically the same average temperature. It receives a similar amount of precipitation.
Some places in other countries have a very similar pattern of temperature and rainfall. The closest matches are Oranjestad (Aruba, BSh), Kralendijk (Bonaire, Saint Eustatius and Saba , BSh) and Coro (Venezuela, BSh).
Nearby places
- Climate in Kralendijk 67 km · 27 °C81 °F · 541 mm21 in
- Climate in Coro 117 km · 28 °C82 °F · 497 mm20 in
- Climate in Oranjestad 132 km · 28 °C82 °F · 457 mm18 in
- Climate in Punto Fijo 151 km · 28 °C83 °F · 599 mm24 in
- Climate in San Felipe 199 km · 26 °C80 °F · 677 mm27 in
- Climate in Puerto Cabello 207 km · 28 °C82 °F · 699 mm28 in
- Climate in Barquisimeto 235 km · 25 °C77 °F · 803 mm32 in
- Climate in Guacara 238 km · 26 °C79 °F · 790 mm31 in
Frequently asked questions
What is the warmest month in Willemstad?
September is the warmest month in Willemstad. Its average high is 29 °C (84 °F) and its average low is 28 °C (83 °F).
What is the coldest month in Willemstad?
February is the coldest month. Its average high is 27 °C (80 °F) and its average low is 26 °C (78 °F).
When does it rain the most in Willemstad?
November is the wettest month with about 117 mm (4.6 in) of precipitation. March is the driest with about 10 mm (0.4 in).
What is the best time to visit Willemstad?
Judging by long-term averages, the most comfortable months are December–July.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.