Willemstad weather in September
In September, Willemstad sees average daytime highs of 28°C and overnight lows near 27°C, with 66 mm of rain across 15 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 29% of the time in September, and the air most often feels miserable.
Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Willemstad's 8th-clearest and 10th-windiest month. For the whole year in context, see Willemstad's year-round climate.
- Daytime high
- 28°
- 1st warmest
- Overnight low
- 27°
- 12th coldest
- Rainfall
- 66 mm
- 15 wet days
- Daylight
- 12 h 06 min
- 6:28 AM – 6:32 PM
- Cloud cover
- 63%
- 8th clearest
- Wind
- 27 km/h
- 10th windiest
- Solar energy
- 6.25 kWh/m²
- Travel score
- 5.0
- out of 10
Willemstad is capital city of Curaçao.
- Density
- 868/km²
- people per km²
- Founded
- 1634
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Day-to-day highs hold fairly steady near 28°C through the month.
A typical September day in Willemstad reaches about 28°C in the afternoon and slips back to 27°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 27 |
| 2 | 28 | 27 |
| 3 | 28 | 27 |
| 4 | 28 | 27 |
| 5 | 28 | 27 |
| 6 | 28 | 27 |
| 7 | 28 | 27 |
| 8 | 28 | 27 |
| 9 | 28 | 27 |
| 10 | 28 | 27 |
| 11 | 28 | 27 |
| 12 | 28 | 27 |
| 13 | 28 | 27 |
| 14 | 28 | 27 |
| 15 | 28 | 27 |
| 16 | 28 | 27 |
| 17 | 28 | 27 |
| 18 | 28 | 27 |
| 19 | 28 | 27 |
| 20 | 28 | 27 |
| 21 | 28 | 27 |
| 22 | 28 | 27 |
| 23 | 28 | 27 |
| 24 | 28 | 27 |
| 25 | 28 | 27 |
| 26 | 28 | 27 |
| 27 | 28 | 27 |
| 28 | 28 | 27 |
| 29 | 28 | 27 |
| 30 | 28 | 27 |
How September really feels in Willemstad
Once humidity and wind are folded in, September averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Willemstad weather by month
How September compares with the rest of the year at a glance. September is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 25° | 46 | 12.9 | 11.4 | 6.7 |
| Feb | 26° / 25° | 23 | 7.5 | 11.6 | 7.3 |
| Mar | 26° / 25° | 20 | 6.1 | 11.9 | 7.4 |
| Apr | 27° / 26° | 30 | 6.9 | 12.3 | 6.8 |
| May | 27° / 26° | 37 | 8.4 | 12.6 | 6.5 |
| Jun | 27° / 27° | 43 | 12 | 12.7 | 6.0 |
| Jul | 27° / 26° | 44 | 12.5 | 12.6 | 6.2 |
| Aug | 28° / 27° | 46 | 12.5 | 12.4 | 5.9 |
| Sep | 28° / 27° | 66 | 15 | 12.1 | 5.0 |
| Oct | 28° / 27° | 110 | 21 | 11.7 | 4.4 |
| Nov | 28° / 26° | 150 | 23 | 11.4 | 4.5 |
| Dec | 27° / 26° | 84 | 18 | 11.3 | 5.6 |
Cloud cover in September
The sky is clear or mostly clear about 29% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 52 | 51 | 51 | 51 | 49 | 49 | 50 | 50 | 49 | 49 | 48 | 48 | 46 | 46 | 45 | 45 | 43 | 43 | 43 | 41 | 41 | 40 | 39 | 38 | 38 | 36 | 36 | 36 | 36 | 36 |
| Cloudier (%) | 48 | 49 | 49 | 49 | 51 | 51 | 50 | 50 | 51 | 51 | 52 | 52 | 54 | 54 | 55 | 55 | 57 | 57 | 57 | 59 | 59 | 60 | 61 | 62 | 62 | 64 | 64 | 64 | 64 | 64 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 52 | 48 |
| 2 | 51 | 49 |
| 3 | 51 | 49 |
| 4 | 51 | 49 |
| 5 | 49 | 51 |
| 6 | 49 | 51 |
| 7 | 50 | 50 |
| 8 | 50 | 50 |
| 9 | 49 | 51 |
| 10 | 49 | 51 |
| 11 | 48 | 52 |
| 12 | 48 | 52 |
| 13 | 46 | 54 |
| 14 | 46 | 54 |
| 15 | 45 | 55 |
| 16 | 45 | 55 |
| 17 | 43 | 57 |
| 18 | 43 | 57 |
| 19 | 43 | 57 |
| 20 | 41 | 59 |
| 21 | 41 | 59 |
| 22 | 40 | 60 |
| 23 | 39 | 61 |
| 24 | 38 | 62 |
| 25 | 38 | 62 |
| 26 | 36 | 64 |
| 27 | 36 | 64 |
| 28 | 36 | 64 |
| 29 | 36 | 64 |
| 30 | 36 | 64 |
Chance of precipitation in September
Willemstad gets around 66 mm of rain over 15 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 50% and peaks near 57% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 41 | 41 | 42 | 42 | 43 | 44 | 45 | 46 | 47 | 47 | 48 | 49 | 50 | 51 | 51 | 52 | 52 | 53 | 53 | 53 | 54 | 54 | 54 | 54 | 55 | 55 | 56 | 56 | 57 | 57 |
| Rain chance (%) | |
|---|---|
| 1 | 41 |
| 2 | 41 |
| 3 | 42 |
| 4 | 42 |
| 5 | 43 |
| 6 | 44 |
| 7 | 45 |
| 8 | 46 |
| 9 | 47 |
| 10 | 47 |
| 11 | 48 |
| 12 | 49 |
| 13 | 50 |
| 14 | 51 |
| 15 | 51 |
| 16 | 52 |
| 17 | 52 |
| 18 | 53 |
| 19 | 53 |
| 20 | 53 |
| 21 | 54 |
| 22 | 54 |
| 23 | 54 |
| 24 | 54 |
| 25 | 55 |
| 26 | 55 |
| 27 | 56 |
| 28 | 56 |
| 29 | 57 |
| 30 | 57 |
Humidity in September
Most of September feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the miserable band about 96% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oppressive (%) | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 |
| Miserable (%) | 96 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 96 | 96 | 96 | 96 | 96 | 96 | 96 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 94 |
| Oppressive (%) | Miserable (%) | |
|---|---|---|
| 1 | 4 | 96 |
| 2 | 3 | 97 |
| 3 | 3 | 97 |
| 4 | 3 | 97 |
| 5 | 3 | 97 |
| 6 | 3 | 97 |
| 7 | 3 | 97 |
| 8 | 3 | 97 |
| 9 | 3 | 97 |
| 10 | 3 | 97 |
| 11 | 3 | 97 |
| 12 | 3 | 97 |
| 13 | 3 | 97 |
| 14 | 3 | 97 |
| 15 | 3 | 97 |
| 16 | 4 | 96 |
| 17 | 4 | 96 |
| 18 | 4 | 96 |
| 19 | 4 | 96 |
| 20 | 4 | 96 |
| 21 | 4 | 96 |
| 22 | 4 | 96 |
| 23 | 5 | 95 |
| 24 | 5 | 95 |
| 25 | 5 | 95 |
| 26 | 5 | 95 |
| 27 | 5 | 95 |
| 28 | 5 | 95 |
| 29 | 5 | 95 |
| 30 | 6 | 94 |
Wind in September
Winds average 27 km/h in September.
Across September, daily wind ranges from about 27 km/h on the calmest days to 29 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 29 | breezy |
| 2 | 29 | breezy |
| 3 | 29 | breezy |
| 4 | 29 | breezy |
| 5 | 28 | breezy |
| 6 | 28 | breezy |
| 7 | 28 | breezy |
| 8 | 28 | breezy |
| 9 | 28 | breezy |
| 10 | 28 | breezy |
| 11 | 28 | breezy |
| 12 | 28 | breezy |
| 13 | 28 | breezy |
| 14 | 28 | breezy |
| 15 | 27 | breezy |
| 16 | 27 | breezy |
| 17 | 27 | breezy |
| 18 | 27 | breezy |
| 19 | 27 | breezy |
| 20 | 27 | breezy |
| 21 | 27 | breezy |
| 22 | 27 | breezy |
| 23 | 27 | breezy |
| 24 | 27 | breezy |
| 25 | 27 | breezy |
| 26 | 27 | breezy |
| 27 | 27 | breezy |
| 28 | 27 | breezy |
| 29 | 27 | breezy |
| 30 | 27 | breezy |
Sunrise & sunset in September
Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 18 minutes over September. Sunrise moves from 6:28 AM to 6:28 AM, and sunset from 6:42 PM to 6:22 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 |
| Sunset (PM) | 6:42 | 6:42 | 6:41 | 6:40 | 6:40 | 6:39 | 6:38 | 6:38 | 6:37 | 6:36 | 6:35 | 6:35 | 6:34 | 6:33 | 6:33 | 6:32 | 6:31 | 6:30 | 6:30 | 6:29 | 6:28 | 6:28 | 6:27 | 6:26 | 6:25 | 6:25 | 6:24 | 6:23 | 6:23 | 6:22 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 6:28 | 6:42 |
| 2 | 12.2 | 6:28 | 6:42 |
| 3 | 12.2 | 6:28 | 6:41 |
| 4 | 12.2 | 6:28 | 6:40 |
| 5 | 12.2 | 6:28 | 6:40 |
| 6 | 12.2 | 6:28 | 6:39 |
| 7 | 12.2 | 6:28 | 6:38 |
| 8 | 12.2 | 6:28 | 6:38 |
| 9 | 12.1 | 6:28 | 6:37 |
| 10 | 12.1 | 6:28 | 6:36 |
| 11 | 12.1 | 6:28 | 6:35 |
| 12 | 12.1 | 6:28 | 6:35 |
| 13 | 12.1 | 6:28 | 6:34 |
| 14 | 12.1 | 6:28 | 6:33 |
| 15 | 12.1 | 6:28 | 6:33 |
| 16 | 12.1 | 6:28 | 6:32 |
| 17 | 12.1 | 6:28 | 6:31 |
| 18 | 12.0 | 6:28 | 6:30 |
| 19 | 12.0 | 6:28 | 6:30 |
| 20 | 12.0 | 6:28 | 6:29 |
| 21 | 12.0 | 6:28 | 6:28 |
| 22 | 12.0 | 6:28 | 6:28 |
| 23 | 12.0 | 6:28 | 6:27 |
| 24 | 12.0 | 6:28 | 6:26 |
| 25 | 12.0 | 6:28 | 6:25 |
| 26 | 12.0 | 6:28 | 6:25 |
| 27 | 11.9 | 6:28 | 6:24 |
| 28 | 11.9 | 6:28 | 6:23 |
| 29 | 11.9 | 6:28 | 6:23 |
| 30 | 11.9 | 6:28 | 6:22 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 6.25 kWh/m².
For context, solar energy here swings from a low near 4.91 kWh/m² to a high of 6.52 kWh/m² in August across the year — September's 6.25 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 | 5.9 | 5.9 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.5 | Intense |
| 2 | 6.5 | Intense |
| 3 | 6.5 | Intense |
| 4 | 6.5 | Intense |
| 5 | 6.5 | Intense |
| 6 | 6.4 | Intense |
| 7 | 6.4 | Intense |
| 8 | 6.4 | Intense |
| 9 | 6.4 | Intense |
| 10 | 6.4 | Intense |
| 11 | 6.4 | Intense |
| 12 | 6.3 | Intense |
| 13 | 6.3 | Intense |
| 14 | 6.3 | Intense |
| 15 | 6.3 | Intense |
| 16 | 6.3 | Intense |
| 17 | 6.2 | Intense |
| 18 | 6.2 | Intense |
| 19 | 6.2 | Intense |
| 20 | 6.2 | Intense |
| 21 | 6.1 | Intense |
| 22 | 6.1 | Intense |
| 23 | 6.1 | Intense |
| 24 | 6.0 | Intense |
| 25 | 6.0 | Intense |
| 26 | 6.0 | Bright |
| 27 | 6.0 | Bright |
| 28 | 5.9 | Bright |
| 29 | 5.9 | Bright |
| 30 | 5.9 | Bright |
Hazard calendar for Willemstad
In September, Willemstad sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Willemstad sits in the Atlantic hurricane belt; the season peaks August–October.
Willemstad's rainy season runs October–December, when most of the year's rain falls.
Is September a good time to visit Willemstad?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a reasonable time to visit Willemstad for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Willemstad in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Willemstad sees daytime highs around 28°C and nights near 27°C. Pack light clothes, rain gear and sun protection. Worth having: a windbreaker. About 15 days see rain.
Sea temperature near Willemstad in September
The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in October at about 29°C and coldest in February near 26°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 26 | 26 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 27 | Warm |
| May | 27 | Warm |
| Jun | 28 | Warm |
| Jul | 28 | Warm |
| Aug | 28 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index in Willemstad in September
Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Willemstad peaks around March 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 12 | 14 | 13 | 12 | 11 | 11 | 12 | 12 | 11 | 9 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Willemstad in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Willemstad is worst in June — around 32 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (January, 11 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 14 | 14 | 21 | 26 | 32 | 26 | 20 | 15 | 14 | 12 | 11 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 14 | Moderate |
| Mar | 14 | Moderate |
| Apr | 21 | Moderate |
| May | 26 | Moderate |
| Jun | 32 | Moderate |
| Jul | 26 | Moderate |
| Aug | 20 | Moderate |
| Sep | 15 | Moderate |
| Oct | 14 | Moderate |
| Nov | 12 | Good |
| Dec | 11 | Good |
Where is Willemstad?
Willemstad sits at 12.1°N, 68.9°W, 1 m above sea level, in Curacao. The nearest listed city is Bandariba, 7.0 km away.
Topography around Willemstad
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Willemstad.
Within 3 km, the terrain around Willemstad has only modest variations in elevation — a maximum elevation change of 90 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 178 m; within 80 km, significant variations in elevation — a maximum elevation change of 281 m.
The land around Willemstad is covered by artificial surfaces (66%) within 3 km, water (71%) within 16 km, and water (94%) within 80 km.
Curacao travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B / F
- 127 V · 50 Hz
- Prices
- ≈ 70% of US
- price level, 2024
- GDP per capita
- $22,833
- 2024
- Homicide rate
- 16.9
- per 100k, 2007
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Willemstad (12.1225°, -68.8864°, elevation 1 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).