San Ignacio Weather in September

September in San Ignacio brings high temperatures, with daytime highs of 25°C (77°F) and nights around 17°C (63°F). It's also the wettest month of the year, so an umbrella is a must.

Rainfall in San Ignacio in September

San Ignacio is in the rainy season in September, with rain on around 24 days and an average of 643 mm (25 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.

Temperature in San Ignacio in September

San Ignacio in September gets highs of 25°C (77°F) during the day and drops to 17°C (63°F) at night. This kind of day-to-night contrast is typical for this time of year. With lows of 17°C (63°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in San Ignacio in September

You can expect a moderate amount of sunlight, with approximately 147 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

Wind Speed in San Ignacio in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

September in San Ignacio 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 Costa Rica, check out our San Ignacio's climate page.

San Ignacio Temperature in September

Min Temperature 17°C (63°F)  

Max Temperature 25°C (77°F)  

Chance of Rain 79%  

Precipitation 643 mm (25 in)  

Rainy days 24 days  

Humidity 86% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 147 hours *  

Percentage Sunshine *  

* Data from: Santamaria, Costa Rica (6 KM, 3 Miles).

What to Wear in San Ignacio 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. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in San Ignacio in September

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

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 San Ignacio's climate page.

More climate data for San Ignacio

Temperature Rainfall Sunshine Humidity Wind Speed

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