Cap-Haïtien in Summer
In summer (June, July and August), Cap-Haïtien sees average daytime highs around 28°C and overnight lows near 25°C, with 207 mm of rain over about 50 wet days across the season. It is the warmest season of the year and the driest season of the year.
Across summer, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 37% of the time across summer, and the air most often feels oppressive.
Summer is Cap-Haïtien's 3rd-best season to visit on our travel score. Cap-Haïtien has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Cap-Haïtien's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 207 mm
- 50 wet days
- Avg wind
- 13 km/h
- Travel score
- 5.2
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Cap-Haïtien in Summer
Across summer, daytime highs hold fairly steady around 28°C.
A typical summer day in Cap-Haïtien reaches about 28°C and drops to 25°C overnight. The warmest of the three months is August, the coolest June.
Cap-Haïtien 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 | 25° / 22° | 108 | 15.4 | 10.9 | 6.4 |
| Feb | 25° / 22° | 76 | 13.5 | 11.3 | 6.6 |
| Mar | 25° / 22° | 98 | 15.3 | 11.9 | 6.4 |
| Apr | 26° / 23° | 96 | 16.8 | 12.4 | 6.0 |
| May | 27° / 24° | 113 | 20 | 12.9 | 5.2 |
| Jun | 28° / 25° | 65 | 15.5 | 13.2 | 5.4 |
| Jul | 28° / 25° | 60 | 15.4 | 13.1 | 5.4 |
| Aug | 28° / 25° | 83 | 19.3 | 12.7 | 4.7 |
| Sep | 28° / 25° | 101 | 22.3 | 12.1 | 4.2 |
| Oct | 28° / 25° | 125 | 23.4 | 11.5 | 4.5 |
| Nov | 26° / 23° | 151 | 22 | 11.1 | 4.9 |
| Dec | 26° / 22° | 101 | 17.7 | 10.8 | 6.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 37% of the time across summer.
Chance of precipitation in Summer
Cap-Haïtien gets around 207 mm of rain over 50 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 13 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 06 min 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 6.9 kWh/m².
Hazard calendar for Cap-Haïtien
In summer, Cap-Haïtien overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Cap-Haïtien sits in the Atlantic hurricane belt; the season peaks August–October.
Is summer a good time to visit Cap-Haïtien?
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 Cap-Haïtien for sightseeing.
What to pack for Cap-Haïtien in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Cap-Haïtien sees daytime highs around 28°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 50 days see rain.
Sea temperature near Cap-Haïtien in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 15 km away) is warmest in September 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 | 29 | 29 | 29 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | 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 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in Cap-Haïtien in Summer
Clear-sky midday UV across summer averages 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 Cap-Haïtien peaks around June 19 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 | 10 | 12 | 12 | 11 | 12 | 12 | 11 | 11 | 10 | 7 | 7 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Very high |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 10 | Very high |
| Nov | 7 | Very high |
| Dec | 7 | High |
Air quality in Cap-Haïtien 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 Cap-Haïtien is worst in June — around 32 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (February, 18 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) | 20 | 18 | 18 | 19 | 24 | 32 | 30 | 27 | 24 | 25 | 22 | 20 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 20 | Moderate |
| Feb | 18 | Moderate |
| Mar | 18 | Moderate |
| Apr | 19 | Moderate |
| May | 24 | Moderate |
| Jun | 32 | Moderate |
| Jul | 30 | Moderate |
| Aug | 27 | Moderate |
| Sep | 24 | Moderate |
| Oct | 25 | Moderate |
| Nov | 22 | Moderate |
| Dec | 20 | Moderate |
Where is Cap-Haïtien?
Cap-Haïtien sits at 19.8°N, 72.2°W, 7 m above sea level, in Haiti. The nearest listed city is Lenbe, 22 km away.
Topography around Cap-Haïtien
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cap-Haïtien.
Within 3 km, the terrain around Cap-Haïtien has large variations in elevation — a maximum elevation change of 680 m around an average of 76 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 795 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,768 m.
The land around Cap-Haïtien is covered by water (40%), trees (29%) and artificial surfaces (23%) within 3 km, water (54%) and grassland (20%) within 16 km, and water (35%), grassland (34%) and trees (21%) 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 Cap-Haïtien (19.7594°, -72.1981°, elevation 7 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.