Tumaco in Summer
In summer (June, July and August), Tumaco sees average daytime highs around 27°C and overnight lows near 24°C, with 745 mm of rain over about 82 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 0% of the time across summer, and the air most often feels oppressive.
Summer is Tumaco's weakest season of the year to visit on our travel score. Tumaco 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 Tumaco's year-round climate.
- Avg daytime high
- 27°C
- 2nd-warmest season
- Avg overnight low
- 24°C
- Rainfall
- 745 mm
- 82 wet days
- Avg wind
- 13 km/h
- Travel score
- 3.7
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Tumaco in Summer
Across summer, daytime highs hold fairly steady around 27°C.
A typical summer day in Tumaco reaches about 27°C and drops to 24°C overnight. The warmest of the three months is June, the coolest August.
Tumaco 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° / 24° | 461 | 28.7 | 11.9 | 3.7 |
| Feb | 27° / 25° | 327 | 23.9 | 11.9 | 3.9 |
| Mar | 27° / 25° | 293 | 23.9 | 12 | 4.2 |
| Apr | 27° / 25° | 379 | 25.6 | 12 | 3.9 |
| May | 27° / 25° | 404 | 28.4 | 12.1 | 3.6 |
| Jun | 27° / 25° | 288 | 27 | 12.1 | 3.7 |
| Jul | 27° / 24° | 248 | 27.4 | 12.1 | 3.7 |
| Aug | 27° / 24° | 210 | 27.1 | 12.1 | 3.8 |
| Sep | 27° / 24° | 230 | 25.8 | 12 | 3.9 |
| Oct | 27° / 24° | 270 | 25.5 | 12 | 4.0 |
| Nov | 26° / 24° | 199 | 21.9 | 11.9 | 4.4 |
| Dec | 27° / 24° | 312 | 25.5 | 11.9 | 4.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 0% of the time across summer.
Chance of precipitation in Summer
Tumaco gets around 745 mm of rain over 82 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 12 h 06 min in early June to 12 hours 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 4.0 kWh/m².
Is summer a good time to visit Tumaco?
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 weaker month for outdoor sightseeing in Tumaco.
What to pack for Tumaco in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Tumaco sees daytime highs around 27°C and nights near 24°C. Pack light clothes and rain gear. About 82 days see rain.
Sea temperature near Tumaco in Summer
The nearest coast averages about 27°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 13 km away) is warmest in May at about 28°C and coldest in December 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 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 28 | Warm |
| May | 28 | Warm |
| Jun | 27 | Warm |
| Jul | 27 | Warm |
| Aug | 27 | Warm |
| Sep | 27 | Warm |
| Oct | 27 | Warm |
| Nov | 27 | Warm |
| Dec | 27 | Warm |
UV index in Tumaco 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 Tumaco peaks around February 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 20 at about 11 (extreme).
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) | 14 | 15 | 14 | 13 | 12 | 11 | 11 | 11 | 12 | 13 | 11 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in Tumaco 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 Tumaco is worst in March — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (July, 8 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) | 10 | 13 | 17 | 14 | 11 | 9 | 8 | 9 | 9 | 10 | 13 | 12 |
| Level | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 13 | Moderate |
| Mar | 17 | Moderate |
| Apr | 14 | Moderate |
| May | 11 | Good |
| Jun | 9 | Good |
| Jul | 8 | Good |
| Aug | 9 | Good |
| Sep | 9 | Good |
| Oct | 10 | Good |
| Nov | 13 | Moderate |
| Dec | 12 | Good |
Where is Tumaco?
Tumaco sits at 1.8°N, 78.8°W, 1 m above sea level, in Colombia. The nearest listed city is San Lorenzo de Esmeraldas, 56 km away.
Topography around Tumaco
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tumaco.
Within 3 km, the terrain around Tumaco has only modest variations in elevation — a maximum elevation change of 25 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 70 m; within 80 km, large variations in elevation — a maximum elevation change of 748 m.
The land around Tumaco is covered by mangroves (44%) and water (30%) within 3 km, water (53%) and trees (27%) within 16 km, and trees (53%) and water (40%) within 80 km.
Colombia travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type A / B
- 120 / 240 V · 60 Hz
- Prices
- ≈ 38% of US
- price level, 2025
- GDP per capita
- $8,562
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 74%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 15.4
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 480
- 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 Tumaco (1.7911°, -78.7927°, elevation 1 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.