Weather in Willemstad in August 2025
Average weather
Average temperature in Willemstad in August
The expected average maximum temperature in August is +28°C with a maximum of +30°C and a minimum of +26°C.
The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +28°C to +29°C.
Is Willemstad warm or cold in August?
Willemstad is typically warm in August.
Maximum temperatures go up compared to the previous month from +27°C to +28°C. The minimum temperature also goes up from +26°C to +27°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is one of the warmest months in Willemstad, here is the comparison with other months:
Climate in Willemstad in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +27°C | +28°C | +28°C | ||||
| Min. temperature | ||||||
| +24°C | +25°C | +24°C | ||||
| Max. temperature | ||||||
| +29°C | +30°C | +30°C | ||||
| Rainfall | ||||||
| 42 mm | 49 mm | 65 mm | ||||
| Wind | ||||||
| 7 m/s | 7 m/s | 6 m/s | ||||
| Humidity | ||||||
| 84% | 83% | 83% | ||||
| Air pressure | ||||||
| 1012 HPa | 1011 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 2 | 4 | 2 | ||||
| Cloudy days | ||||||
| 6 | 6 | 5 | ||||
| Rainy days | ||||||
| 22 | 20 | 20 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. It’s getting warmer as August arrives. The average maximum temperature goes up from +27°C to +28°C during the day. Prepare for more rain. Average rainfall goes from 42 mm to 49 mm. It feels drier, as humidity decreases from 84% to 83%. The average wind speed doesn’t change much during August, staying around 7 m/s. The good news is there are likely to be more sunny days in August, from 2 to 4.
Next month (September) brings a further decline in the weather.
Wind
The average wind speed is 5 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Willemstad is gradually increasing during August, going from 6 m/s to 8 m/s over the course of the month.
Rain
How was the weather last August in Willemstad?
Climate Change over Years
The climate in Willemstad in August has not changed much over the last 43 years.
The average temperature was the lowest in 1985 (+26°C) and the highest in 2024 (+28°C). The driest year was 2019 with only 303 mm of rainfall, and the wettest year was 2010 with 1534 mm.
FAQ
Is August a good time to visit Willemstad?
Can you sunbathe in Willemstad in August?
Is Willemstad rainy in August?
Is it sunny in Willemstad in August?
Monthly weather in Willemstad
Source of the data
For this page, we’ve looked at the typical weather in Willemstad, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
