Tumaco climate
Tumaco (Colombia) has a tropical savanna (dry summer) climate (Köppen As). The average temperature over the year is 27 °C80 °F, and about 1,029 mm40 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Tumaco climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2883 | 2476 | 2679 | 1014.0 |
| Feb | 2883 | 2576 | 2680 | 943.7 |
| Mar | 2883 | 2576 | 2780 | 1094.3 |
| Apr | 2984 | 2577 | 2780 | 1385.4 |
| May | 2983 | 2577 | 2780 | 1174.6 |
| Jun | 2984 | 2577 | 2780 | 763.0 |
| Jul | 2984 | 2576 | 2780 | 431.7 |
| Aug | 2985 | 2576 | 2780 | 271.1 |
| Sep | 2984 | 2576 | 2780 | 421.6 |
| Oct | 2983 | 2476 | 2680 | 893.5 |
| Nov | 2882 | 2475 | 2679 | 1014.0 |
| Dec | 2882 | 2476 | 2679 | 913.6 |
| Year | 2985 | 2475 | 2780 | 1,02940 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 84% | 89% | 3.9 | 12:02 |
| Feb | 83% | 89% | 4.1 | 12:03 |
| Mar | 83% | 88% | 4.3 | 12:06 |
| Apr | 83% | 88% | 4.4 | 12:09 |
| May | 83% | 89% | 3.9 | 12:12 |
| Jun | 82% | 89% | 3.7 | 12:13 |
| Jul | 80% | 89% | 3.7 | 12:13 |
| Aug | 78% | 89% | 3.8 | 12:10 |
| Sep | 78% | 92% | 3.8 | 12:07 |
| Oct | 79% | 91% | 3.9 | 12:04 |
| Nov | 81% | 91% | 3.7 | 12:02 |
| Dec | 83% | 89% | 3.7 | 12:01 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Tumaco is like
The warmest month is August, with an average high of 29 °C85 °F and a low of 25 °C76 °F. The coldest is November, when highs average 28 °C82 °F and lows 24 °C75 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 0.8 °C1.5 °F.
It is wet, with about 1,029 mm40 in of precipitation per year. The wettest three-month stretch is March–May, which brings 35% of the annual total. The wettest month is April (138 mm5.4 in), the driest is August (27 mm1.1 in).
Relative humidity ranges from 78% in August to 84% in January. The clearest skies (lowest average cloud amount, 88%) are typical of March. Average wind speed near the ground ranges from 9 km/h (5 mph) in March to 15 km/h (9 mph) in September.
Best time to visit Tumaco
Based on these averages, the most comfortable months for sightseeing and outdoor activities are July–September: average highs of 29 °C84 °F to 29 °C85 °F with 27 mm1.1 in to 43 mm1.7 in of precipitation per month.
The most challenging month is April, which is humid (83% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Tumaco
- Wetter months (October–May) — highs 2882 to 29 °C84 °F, lows 2475 to 25 °C77 °F, about 105 mm4.1 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Drier months (June–September) — highs around 29 °C84 °F, lows around 25 °C76 °F, about 47 mm1.9 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How Tumaco compares
Compared with Esmeraldas, about 133 km to the southwest, Tumaco has practically the same average temperature and receives 10% less precipitation (1,029 mm40 in vs 1,146 mm45 in). The difference is largest in June (0.7 °C1.3 °F warmer).
Of the 48 places in Colombia covered by World Climates, Tumaco is the 21st warmest by annual mean temperature and the 37th wettest by annual precipitation. See all of them on the Colombia climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Esmeraldas (Ecuador, As), São Tomé (Sao Tome and Principe, As) and Lauro de Freitas (Brazil, As).
Nearby places
- Esmeraldas 133 km · 26 °C79 °F · 1,146 mm45 in
- Providencia 150 km · 22 °C72 °F · 978 mm39 in
- Ibarra 177 km · 16 °C61 °F · 1,043 mm41 in
- Pasto 180 km · 13 °C56 °F · 1,038 mm41 in
- Quito 227 km · 11 °C52 °F · 1,180 mm46 in
- Santo Domingo de los Colorados 231 km · 24 °C75 °F · 1,465 mm58 in
- Popayán 253 km · 18 °C65 °F · 972 mm38 in
- Buenaventura 282 km · 28 °C82 °F · 1,260 mm50 in
Frequently asked questions
What is the warmest month in Tumaco?
August is the warmest month in Tumaco, with an average high of 29 °C (85 °F) and an average low of 25 °C (76 °F).
What is the coldest month in Tumaco?
November is the coldest month, with an average high of 28 °C (82 °F) and an average low of 24 °C (75 °F).
When does it rain the most in Tumaco?
April is the wettest month with about 138 mm (5.4 in) of precipitation; August is the driest with about 27 mm (1.1 in).
What is the best time to visit Tumaco?
Judging by long-term averages, the most comfortable months are July–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.