Isla del Rosario Weather in September

September in Isla del Rosario sees daytime temperatures around 30°C (86°F) and lows of 26°C (79°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.

Rainfall in Isla del Rosario in September

Isla del Rosario is in the rainy season in September, with rain on around 13 days and an average of 212 mm (8.3 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.

Temperature in Isla del Rosario in September

If you're visiting Isla del Rosario in September, expect highs of 30°C (86°F) and overnight lows around 26°C (79°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.

Sunshine in Isla del Rosario in September

You can expect a moderate amount of sunlight, with approximately 173 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

September in Isla del Rosario has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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For a detailed overview over the year and the best time to visit Colombia, check out our Isla del Rosario's climate page.

Isla del Rosario Temperature in September

Min Temperature 26°C (79°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 44%  

Precipitation 212 mm (8.3 in)  

Rainy days 13 days  

Humidity 82% *  

Sunshine 173 hours *  

Percentage Sunshine 47% *  

* Data from: Cartagena, Colombia (39 KM, 24 Miles).

What to Wear in Isla del Rosario in September

Warm but pleasant conditions in Isla del Rosario in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Isla del Rosario in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Colombia, check out our Isla del Rosario's climate page.

More climate data for Isla del Rosario

Temperature Rainfall Sunshine Humidity

See the full Isla del Rosario climate overview or explore weather in Colombia.