Gressier in Summer
In summer (June, July and August), Gressier sees average daytime highs around 29°C and overnight lows near 23°C, with 396 mm of rain over about 59 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 25% of the time across summer, and the air most often feels oppressive.
Summer is Gressier's weakest season of the year to visit on our travel score. Gressier 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 Gressier's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 396 mm
- 59 wet days
- Avg wind
- 4 km/h
- Travel score
- 4.3
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Gressier in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Gressier reaches about 29°C and drops to 23°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Gressier
Once humidity and wind are folded in, summer brings about 76 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Gressier 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 | 27° / 20° | 20 | 4.6 | 11 | 7.8 |
| Feb | 27° / 20° | 30 | 6.2 | 11.4 | 7.4 |
| Mar | 27° / 21° | 72 | 11.4 | 11.9 | 6.5 |
| Apr | 27° / 22° | 125 | 16.8 | 12.4 | 5.6 |
| May | 28° / 23° | 186 | 21.3 | 12.9 | 4.7 |
| Jun | 29° / 23° | 120 | 18 | 13.1 | 4.5 |
| Jul | 29° / 23° | 118 | 19.6 | 13 | 4.3 |
| Aug | 29° / 24° | 159 | 21.7 | 12.6 | 4.0 |
| Sep | 29° / 23° | 180 | 23.5 | 12.1 | 3.8 |
| Oct | 28° / 23° | 167 | 22.3 | 11.6 | 4.4 |
| Nov | 27° / 22° | 90 | 13.9 | 11.1 | 6.0 |
| Dec | 27° / 20° | 31 | 6.5 | 10.9 | 7.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 25% of the time across summer.
Chance of precipitation in Summer
Gressier gets around 396 mm of rain over 59 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 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 6.8 kWh/m².
Hazard calendar for Gressier
In summer, Gressier overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Gressier sits in the Atlantic hurricane belt; the season peaks August–October.
Is summer a good time to visit Gressier?
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 Gressier for sightseeing.
What to pack for Gressier in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Gressier sees daytime highs around 29°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 59 days see rain.
Sea temperature near Gressier 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 at the nearest coast (about 14 km away) 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 Gressier 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 Gressier 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 Gressier 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 Gressier is worst in June — around 31 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (March, 13 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) | 14 | 14 | 13 | 15 | 21 | 31 | 30 | 26 | 20 | 20 | 16 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 14 | Moderate |
| Mar | 13 | Moderate |
| Apr | 15 | Moderate |
| May | 21 | Moderate |
| Jun | 31 | Moderate |
| Jul | 30 | Moderate |
| Aug | 26 | Moderate |
| Sep | 20 | Moderate |
| Oct | 20 | Moderate |
| Nov | 16 | Moderate |
| Dec | 15 | Moderate |
Where is Gressier?
Gressier sits at 18.5°N, 72.5°W, 17 m above sea level, in Haiti. The nearest listed city is Léogâne, 12 km away.
Topography around Gressier
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Gressier.
Within 3 km, the terrain around Gressier has significant variations in elevation — a maximum elevation change of 275 m around an average of 46 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,500 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,681 m.
The land around Gressier is covered by water (36%) and trees (33%) within 3 km, water (48%), grassland (27%) and trees (20%) within 16 km, and water (43%) and grassland (35%) 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 Gressier (18.5409°, -72.5268°, elevation 17 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.