How many sunny days does Willemstad have per year?

Willemstad averages approximately 332 sunny days per year, based on historical climate data.

What is the air quality in Willemstad?

Willemstad has an annual PM2.5 concentration of 12.9 µg/m³, classified as "Fair" by WHO standards. Slightly above WHO targets. Sensitive individuals may notice effects.

Curacao

Willemstad · Curacao

The capital and largest city of Curacao.

Photo by Bent Van Aeken on Unsplash

Small city

162K

119 km²

00:12 UTC-4

ANG

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Willemstad, Curacao is a 162K-resident city with 332 sunny days and 0 frost days annually and an annual PM2.5 of 12.9 µg/m³. The capital and largest city of Curacao.

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Climate

Feels-like °C

Dinner outside

Climate Lab·Willemstad

Monthly climate metrics across temperature, precipitation, wind, and UV.

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Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	27	26	27	27	27	28	28	29	29	29	28	28	28
Daily mean°C	26	26	26	26	27	27	28	28	29	29	28	27	27
Daily low°C	25	25	26	26	27	27	27	27	28	27	26	26	26
Thermal comfort
High feelsDaily high feels-like°C	28	27	27	28	29	29	30	31	32	32	31	29	30
Mean feelsDaily mean feels-like°C	26	26	26	26	27	28	28	29	30	30	29	28	28
Low feelsDaily low feels-like°C	21	21	21	22	23	24	24	26	26	26	25	23	23
Humidity
HumidityRelative humidity%	81	81	81	83	85	84	84	83	83	82	82	81	82
Dewpoint°C	22.5	22.2	22.4	23.3	24.4	24.5	24.5	24.8	25.0	25.0	24.3	23.3	23.8
Precipitation
Rainfallmm	38	35	22	26	21	35	34	24	51	111	166	66	628
Rain days≥1mm	17	14	7	5	6	11	11	5	11	19	28	26	160
Wind
Wind avgm/s	7.9	8.6	8.8	8.8	9.4	9.0	8.9	8.1	7.8	7.5	7.1	7.8	8.3
Wind gustsm/s	10.5	10.8	10.7	10.5	11.1	10.5	10.5	10.2	9.7	9.7	9.1	9.8	10.2
Sun & UV
Sunshinehrs/day	10.1	10.2	10.1	10.3	10.3	10.4	10.8	10.2	10.2	10.0	9.6	10.1	10.2
Clear skyindex	76%	83%	63%	45%	43%	45%	57%	55%	52%	53%	47%	59%	56%
UV indexmax avg	8.5	10.2	11.4	11.4	11.0	10.7	10.5	11.5	11.3	10.0	8.2	7.8	10.2

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Lifestyle Calendar·Willemstad

Outdoor activities in Willemstad are challenging most of the year. February through January are the toughest stretch. Dinner Outside manages 0/12 comfortable months.

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Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

0/12

Dinner Outside

21Jan: 21% viability

12Feb: 12% viability

11Mar: 11% viability

7Apr: 7% viability

7May: 7% viability

5Jun: 5% viability

6Jul: 6% viability

18Aug: 18% viability

23Sep: 23% viability

28Oct: 28% viability

29Nov: 29% viability

23Dec: 23% viability

0/12

Dinner Outside

21Jan: 21% viability

12Feb: 12% viability

11Mar: 11% viability

7Apr: 7% viability

7May: 7% viability

5Jun: 5% viability

6Jul: 6% viability

18Aug: 18% viability

23Sep: 23% viability

28Oct: 28% viability

29Nov: 29% viability

23Dec: 23% viability

16%

Wind

0/12

Lunch Outside

18Jan: 18% viability

13Feb: 13% viability

16Mar: 16% viability

8Apr: 8% viability

4May: 4% viability

7Jun: 7% viability

7Jul: 7% viability

19Aug: 19% viability

27Sep: 27% viability

32Oct: 32% viability

32Nov: 32% viability

22Dec: 22% viability

0/12

Lunch Outside

18Jan: 18% viability

13Feb: 13% viability

16Mar: 16% viability

8Apr: 8% viability

4May: 4% viability

7Jun: 7% viability

7Jul: 7% viability

19Aug: 19% viability

27Sep: 27% viability

32Oct: 32% viability

32Nov: 32% viability

22Dec: 22% viability

17%

Wind

0/12

Walking

43Jan: 43% viability

34Feb: 34% viability

31Mar: 31% viability

27Apr: 27% viability

13May: 13% viability

20Jun: 20% viability

20Jul: 20% viability

38Aug: 38% viability

46Sep: 46% viability

40Oct: 40% viability

53Nov: 53% viability

55Dec: 55% viability

0/12

Walking

43Jan: 43% viability

34Feb: 34% viability

31Mar: 31% viability

27Apr: 27% viability

13May: 13% viability

20Jun: 20% viability

20Jul: 20% viability

38Aug: 38% viability

46Sep: 46% viability

40Oct: 40% viability

53Nov: 53% viability

55Dec: 55% viability

35%

Humid

0/12

Running

42Jan: 42% viability

33Feb: 33% viability

30Mar: 30% viability

27Apr: 27% viability

11May: 11% viability

18Jun: 18% viability

20Jul: 20% viability

31Aug: 31% viability

25Sep: 25% viability

23Oct: 23% viability

43Nov: 43% viability

52Dec: 52% viability

0/12

Running

42Jan: 42% viability

33Feb: 33% viability

30Mar: 30% viability

27Apr: 27% viability

11May: 11% viability

18Jun: 18% viability

20Jul: 20% viability

31Aug: 31% viability

25Sep: 25% viability

23Oct: 23% viability

43Nov: 43% viability

52Dec: 52% viability

30%

Humid

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Willemstad · Curacao

Climate

Climate Lab·Willemstad

Lifestyle Calendar·Willemstad

Air Quality Profile

Air Quality Profile

Who thrives in Willemstad

Frequently asked about Willemstad