Santiago de Cuba in Summer
In summer (June, July and August), Santiago de Cuba sees average daytime highs around 31°C and overnight lows near 24°C, with 218 mm of rain over about 41 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 31°C. The sky is clear or mostly clear about 30% of the time across summer, and the air most often feels oppressive.
Summer is Santiago de Cuba's weakest season of the year to visit on our travel score. For the whole year in context, see Santiago de Cuba's year-round climate.
- Avg daytime high
- 31°C
- warmest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 218 mm
- 41 wet days
- Avg wind
- 8 km/h
- Travel score
- 4.2
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Santiago de Cuba in Summer
Across summer, daytime highs hold fairly steady around 31°C.
A typical summer day in Santiago de Cuba reaches about 31°C and drops to 24°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Santiago de Cuba
Once humidity and wind are folded in, summer brings about 92 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.
Santiago de Cuba 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° / 21° | 12 | 2.6 | 10.9 | 8.0 |
| Feb | 28° / 20° | 12 | 2.7 | 11.3 | 7.9 |
| Mar | 28° / 21° | 28 | 5.5 | 11.9 | 7.1 |
| Apr | 29° / 22° | 46 | 8.1 | 12.4 | 6.1 |
| May | 29° / 23° | 114 | 15.6 | 12.9 | 4.8 |
| Jun | 30° / 24° | 80 | 13.3 | 13.2 | 4.4 |
| Jul | 31° / 24° | 56 | 12.6 | 13.1 | 4.3 |
| Aug | 31° / 25° | 82 | 14.9 | 12.7 | 4.0 |
| Sep | 30° / 24° | 115 | 20 | 12.1 | 3.7 |
| Oct | 29° / 24° | 111 | 17.3 | 11.5 | 4.4 |
| Nov | 29° / 23° | 59 | 7.8 | 11.1 | 6.0 |
| Dec | 28° / 21° | 22 | 3.4 | 10.8 | 7.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 30% of the time across summer.
Chance of precipitation in Summer
Santiago de Cuba gets around 218 mm of rain over 41 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 8 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 6.5 kWh/m².
Hazard calendar for Santiago de Cuba
In summer, Santiago de Cuba overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Santiago de Cuba sits in the Atlantic hurricane belt; the season peaks August–October.
Is summer a good time to visit Santiago de Cuba?
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 Santiago de Cuba for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Santiago de Cuba in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Santiago de Cuba sees daytime highs around 31°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 41 days see rain.
Sea temperature near Santiago de Cuba 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 17 km away) is warmest in September at about 30°C and coldest in February near 27°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 | 27 | 27 | 28 | 28 | 29 | 29 | 30 | 30 | 30 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 28 | Warm |
| May | 28 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 30 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index in Santiago de Cuba 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 Santiago de Cuba peaks around June 14 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 | 11 | 12 | 12 | 11 | 12 | 12 | 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 | 11 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Very high |
| Nov | 7 | Very high |
| Dec | 7 | High |
Air quality in Santiago de Cuba 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 Santiago de Cuba is worst in June — around 25 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (December, 7 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) | 8 | 9 | 10 | 12 | 15 | 25 | 23 | 19 | 15 | 12 | 8 | 7 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 9 | Good |
| Mar | 10 | Good |
| Apr | 12 | Good |
| May | 15 | Moderate |
| Jun | 25 | Moderate |
| Jul | 23 | Moderate |
| Aug | 19 | Moderate |
| Sep | 15 | Moderate |
| Oct | 12 | Moderate |
| Nov | 8 | Good |
| Dec | 7 | Good |
Where is Santiago de Cuba?
Santiago de Cuba sits at 20.0°N, 75.8°W, 33 m above sea level, in Cuba. The nearest listed city is San Luis, 19 km away.
Topography around Santiago de Cuba
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santiago de Cuba.
Within 3 km, the terrain around Santiago de Cuba has only modest variations in elevation — a maximum elevation change of 125 m around an average of 29 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 993 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,730 m.
The land around Santiago de Cuba is covered by artificial surfaces (56%) and trees (31%) within 3 km, trees (59%) and water (26%) within 16 km, and trees (47%) and water (32%) within 80 km.
Cuba travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C / L
- 110 V · 60 Hz
- Prices
- ≈ 39% of US
- price level, 2011
- GDP per capita
- $9,605
- 2020
- Happiness
- 5.4 / 10
- World Happiness, 2011
- Homicide rate
- 4.5
- per 100k, 2019
- Road deaths
- 8.9
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 515
- 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 Santiago de Cuba (20.0229°, -75.8217°, elevation 33 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.