Cartagena, Colombia weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: December – March
What is the weather like in Cartagena, Colombia in August?
In August, Cartagena, Colombia is hot: daytime highs average 30 °C, and even at night it stays warm at around 26 °C. The sea averages 29.6 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 192 mm. On about 10 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a good month for a holiday in Cartagena, Colombia.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 71 | 69 | 68 |
| Day | 30° | 30° | 29° |
| Night | 26° | 26° | 25° |
| Sea | 30° | 30° | 30° |
| Sun | 6 h | 6 h | 6 h |
| Rain days | 26 | 28 | 28 |
More details for August
- Daylight
- 12 h 28 min05:53 – 18:21
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or more
- Wind
- 16 km/haverage daily peak
- Cloud cover
- 87 %on average
- Hot days
- 10 days30 °C or more
- Time zone
- UTC−5America/Bogota
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %47 %
- Few rainy daysweight 20 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Cartagena, Colombia in August: quick answers
Is Cartagena, Colombia hot in August?
Yes. In August, Cartagena, Colombia is hot: daytime highs average 30 °C and nights stay around 26 °C. On about 10 days the thermometer climbs to 30 °C or more.
Can you swim in Cartagena, Colombia in August?
Yes. In August the sea averages 29.6 °C – almost as warm as a bath.
Does it rain much in Cartagena, Colombia in August?
It rains often – on about 28 days, adding up to 192 mm.
Cartagena, Colombia month by month
The whole year in Cartagena, ColombiaAll destinations: ColombiaWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)