Port-au-Prince in Summer
In summer (June, July and August), Port-au-Prince sees average daytime highs around 29°C and overnight lows near 21°C, with 465 mm of rain over about 64 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 20% of the time across summer, and the air most often feels muggy.
Summer is Port-au-Prince's weakest season of the year to visit on our travel score. For the whole year in context, see Port-au-Prince's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 21°C
- Rainfall
- 465 mm
- 64 wet days
- Avg wind
- 4 km/h
- Travel score
- 4.2
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Port-au-Prince in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Port-au-Prince reaches about 29°C and drops to 21°C overnight. The warmest of the three months is July, the coolest June.
Port-au-Prince weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 17° | 26 | 6.5 | 11 | 7.5 |
| Feb | 27° / 17° | 42 | 8.2 | 11.4 | 7.0 |
| Mar | 27° / 18° | 103 | 15.3 | 11.9 | 5.9 |
| Apr | 27° / 19° | 169 | 20.3 | 12.4 | 5.0 |
| May | 27° / 20° | 240 | 24 | 12.9 | 4.4 |
| Jun | 28° / 21° | 142 | 20.1 | 13.1 | 4.5 |
| Jul | 29° / 21° | 130 | 20.4 | 13 | 4.3 |
| Aug | 29° / 21° | 193 | 23.4 | 12.6 | 3.9 |
| Sep | 28° / 21° | 223 | 25.5 | 12.1 | 3.8 |
| Oct | 27° / 20° | 208 | 24.2 | 11.6 | 4.4 |
| Nov | 27° / 19° | 101 | 15.8 | 11.1 | 5.7 |
| Dec | 26° / 18° | 36 | 7.3 | 10.9 | 7.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 20% of the time across summer.
Chance of precipitation in Summer
Port-au-Prince gets around 465 mm of rain over 64 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 4 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 hours in early June to 12 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.7 kWh/m².
Hazard calendar for Port-au-Prince
In summer, Port-au-Prince overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Port-au-Prince sits in the Atlantic hurricane belt; the season peaks August–October.
Is summer a good time to visit Port-au-Prince?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Port-au-Prince for sightseeing.
What to pack for Port-au-Prince in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Port-au-Prince sees daytime highs around 29°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 64 days see rain.
Sea temperature near Port-au-Prince in Summer
The nearest coast averages about 30°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 30°C and coldest in February near 28°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) | 28 | 28 | 28 | 28 | 29 | 29 | 30 | 30 | 30 | 30 | 29 | 29 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | Warm |
| Mar | 28 | Warm |
| Apr | 28 | Tropical |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 30 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Port-au-Prince in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Port-au-Prince peaks around August 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (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) | 8 | 9 | 12 | 12 | 11 | 12 | 10 | 12 | 11 | 10 | 8 | 7 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 9 | Very high |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 10 | Very high |
| Aug | 12 | Extreme |
| Sep | 11 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Port-au-Prince in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Port-au-Prince is worst in June — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 28 | 24 | 22 | 22 | 25 | 34 | 33 | 29 | 26 | 31 | 31 | 31 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 28 | Moderate |
| Feb | 24 | Moderate |
| Mar | 22 | Moderate |
| Apr | 22 | Moderate |
| May | 25 | Moderate |
| Jun | 34 | Moderate |
| Jul | 33 | Moderate |
| Aug | 29 | Moderate |
| Sep | 26 | Moderate |
| Oct | 31 | Moderate |
| Nov | 31 | Moderate |
| Dec | 31 | Moderate |
Where is Port-au-Prince?
Port-au-Prince sits at 18.5°N, 72.3°W, 27 m above sea level, in Haiti. The nearest listed city is Delmas, 4.0 km away.
Topography around Port-au-Prince
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Port-au-Prince.
Within 3 km, the terrain around Port-au-Prince has significant variations in elevation — a maximum elevation change of 476 m around an average of 62 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,916 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,681 m.
The land around Port-au-Prince is covered by artificial surfaces (68%) within 3 km, grassland (30%), water (25%) and artificial surfaces (23%) within 16 km, and grassland (40%) and water (36%) within 80 km.
Haiti travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type A / B
- 110 V · 60 Hz
- Prices
- ≈ 86% of US
- price level, 2025
- GDP per capita
- $2,694
- 2025
- Happiness
- 3.6 / 10
- World Happiness, 2020
- Homicide rate
- 41.2
- per 100k, 2023
- Road deaths
- 18.8
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Very low
- EF EPI 444
- 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 Port-au-Prince (18.5435°, -72.3388°, elevation 27 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.