Fortuna Weather in September

September in Fortuna brings high temperatures, with highs of 30°C (86°F) and nights dropping to 22°C (72°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.

Rainfall in Fortuna in September

As part of the rainy season, Fortuna sees around 24 days of rain in September, with an average of 323 mm (13 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.

Temperature in Fortuna in September

If you're visiting Fortuna in September, expect highs of 30°C (86°F) and overnight lows around 22°C (72°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 22°C (72°F), evenings stay pleasantly warm.

Sunshine in Fortuna in September

The area enjoys a moderate level of sunlight, with around 158 hours. It's a good balance between sunny and rainy days.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Fortuna. Our weather planner can help you explore destinations with more pleasant weather conditions.

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 Costa Rica, check out our Fortuna's climate page.

Fortuna Temperature in September

Min Temperature 22°C (72°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 79%  

Precipitation 323 mm (13 in)  

Rainy days 24 days  

Humidity 86% *  

Sunshine 158 hours *  

Percentage Sunshine *  

* Data from: Liberia, Costa Rica (25 KM, 16 Miles).

What to Wear in Fortuna in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Fortuna 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

6/10

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 Costa Rica, check out our Fortuna's climate page.

More climate data for Fortuna

Temperature Rainfall Sunshine Humidity

See the full Fortuna climate overview or explore weather in Costa Rica.