Grand-Bassam in Summer
In summer (June, July and August), Grand-Bassam sees average daytime highs around 26°C and overnight lows near 24°C, with 442 mm of rain over about 61 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Over the season highs ease from about 27°C in early June to 25°C by late August. The sky is clear or mostly clear about 6% of the time across summer, and the air most often feels oppressive.
Summer is Grand-Bassam's 2nd-best season to visit on our travel score. Grand-Bassam 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 Grand-Bassam's year-round climate.
- Avg daytime high
- 26°C
- coldest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 442 mm
- 61 wet days
- Avg wind
- 15 km/h
- Travel score
- 4.9
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Grand-Bassam in Summer
Over the season highs ease from about 27°C in early June to 25°C by late August.
A typical summer day in Grand-Bassam reaches about 26°C and drops to 24°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Grand-Bassam
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Grand-Bassam 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 | 28° / 26° | 47 | 13.7 | 11.7 | 6.0 |
| Feb | 28° / 26° | 55 | 16.3 | 11.8 | 5.2 |
| Mar | 28° / 26° | 78 | 20.2 | 12 | 4.4 |
| Apr | 28° / 26° | 103 | 21.9 | 12.1 | 4.1 |
| May | 28° / 26° | 206 | 27.9 | 12.2 | 3.6 |
| Jun | 27° / 25° | 250 | 27.3 | 12.3 | 3.8 |
| Jul | 25° / 24° | 129 | 19.8 | 12.3 | 5.1 |
| Aug | 25° / 24° | 64 | 14.3 | 12.2 | 5.9 |
| Sep | 25° / 24° | 88 | 18.3 | 12 | 5.3 |
| Oct | 26° / 25° | 107 | 24.3 | 11.9 | 4.5 |
| Nov | 28° / 25° | 93 | 24.2 | 11.8 | 4.3 |
| Dec | 28° / 26° | 63 | 18.9 | 11.7 | 5.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 6% of the time across summer.
Chance of precipitation in Summer
Grand-Bassam gets around 442 mm of rain over 61 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 15 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 18 min in early June to 12 h 06 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 4.3 kWh/m².
Hazard calendar for Grand-Bassam
In summer, Grand-Bassam overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Grand-Bassam's rainy season runs May–July, when most of the year's rain falls.
Grand-Bassam sees seasonal dust haze (January–February), heaviest in February.
Is summer a good time to visit Grand-Bassam?
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 Grand-Bassam for sightseeing.
What to pack for Grand-Bassam in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Grand-Bassam sees daytime highs around 26°C and nights near 24°C. Pack rain gear. Worth having: light clothes. About 61 days see rain.
Sea temperature near Grand-Bassam in Summer
The nearest coast averages about 25°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 16 km away) is warmest in April at about 28°C and coldest in August near 24°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 | 28 | 28 | 28 | 28 | 27 | 25 | 24 | 24 | 26 | 28 | 28 |
| Comfort | Warm | Warm | Tropical | Tropical | Tropical | Warm | Warm | Refreshing | Warm | Warm | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 28 | Warm |
| Mar | 28 | Tropical |
| Apr | 28 | Tropical |
| May | 28 | Tropical |
| Jun | 27 | Warm |
| Jul | 25 | Warm |
| Aug | 24 | Refreshing |
| Sep | 24 | Warm |
| Oct | 26 | Warm |
| Nov | 28 | Tropical |
| Dec | 28 | Tropical |
UV index in Grand-Bassam in Summer
Clear-sky midday UV across summer averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Grand-Bassam peaks around April 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 16 at about 8 (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) | 10 | 12 | 13 | 14 | 11 | 10 | 8 | 11 | 12 | 11 | 10 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Extreme |
| Jul | 8 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 10 | Very high |
| Dec | 9 | Very high |
Air quality in Grand-Bassam 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 Grand-Bassam is worst in January — around 72 µg/m³ PM2.5 (unhealthy), about 3.3× the cleanest month (August, 22 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) | 72 | 61 | 42 | 40 | 29 | 27 | 25 | 22 | 22 | 27 | 36 | 61 |
| Level | Unhealthy | Unhealthy | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 72 | Unhealthy |
| Feb | 61 | Unhealthy |
| Mar | 42 | Poor |
| Apr | 40 | Poor |
| May | 29 | Moderate |
| Jun | 27 | Moderate |
| Jul | 25 | Moderate |
| Aug | 22 | Moderate |
| Sep | 22 | Moderate |
| Oct | 27 | Moderate |
| Nov | 36 | Poor |
| Dec | 61 | Unhealthy |
Where is Grand-Bassam?
Grand-Bassam sits at 5.2°N, 3.7°W, 7 m above sea level, in Ivory Coast. The nearest listed city is Bonoua, 17 km away.
Topography around Grand-Bassam
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Grand-Bassam.
Within 3 km, the terrain around Grand-Bassam has only modest variations in elevation — a maximum elevation change of 14 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 98 m; within 80 km, only modest variations in elevation — a maximum elevation change of 201 m.
The land around Grand-Bassam is covered by artificial surfaces (29%), grassland (22%) and water (21%) within 3 km, water (49%) and trees (34%) within 16 km, and trees (55%) and water (38%) within 80 km.
Ivory Coast travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 37% of US
- price level, 2025
- GDP per capita
- $3,050
- 2025
- Happiness
- 5.1 / 10
- World Happiness, 2025
- Safe drinking water
- 36%
- of population, 2024
- Road deaths
- 24.1
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Very low
- EF EPI 393
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 Grand-Bassam (5.2118°, -3.7388°, 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.