August · Colombia
Best time to visit San Andrés Island in August Weather, crowds & prices
Weather in San Andrés Island in August
Average temperature 29°C, 146 mm of rain, about 25 days with 6+ hours of sunshine and 83% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
7.5/10
Ranked #7 of 12 months
- Avg temp
- 29°C
- Rainfall
- 146 mm
- Humidity
- 83%
- Days with 6h+ sun
- 25
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
August in San Andrés Island scores 7.5/10 for beach and coastal travel - ranked #7 of 12. Expect around 29°C, 146 mm of rain, and roughly 25 days with 6+ hours of sunshine this month.
San Andrés is a Colombian Caribbean island ringed by reef, known for its sea of seven colours and duty-free port.
August holds up well in San Andrés Island — 7th best month
August averages 29°C (84°F) and humidity near 83%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Monthly rainfall reaches 146 mm — wet for this destination — but about 25 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 7.5/10 here, 7th of 12 months, against 9.7/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Figure on mid-season pricing, with crowds are moderate.
Flexible dates? January scores 2.2 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in San Andrés Island in August?
- In August, San Andrés Island averages 29°C, 146 mm of rain, and about 25 days with 6+ hours of sunshine. Its climate-comfort score is 7.5/10.
- Is August a good time to visit San Andrés Island?
- August earns a 7.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in San Andrés Island in August?
- Expect about 146 mm of rain in August. Average humidity is 83% and there are about 25 days with 6+ hours of sunshine.
Curated in San Andrés Island
Tickets & experiences
Things to do in San Andrés Island
San Andrés Island, Colombia. Live activities and tours from GetYourGuide, matched to this destination.