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San José Costa Rica
Temperatures in September
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San José temperatures in September

San José is a region in Costa Rica. In September the average maximum daytime temperatures are high and range from 23°C in La Ese to 26°C in Colón. Nighttime temperatures generally drop to 18°C in Colón and 16°C in La Ese.

What is the temperature of the different cities in San José in September?

To get a sense of September's typical temperatures in the key spots of San José, explore the map below. Click on a point for an in-depth look.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in September in San José?
    • From a thorough analysis of our records, Colón clearly dominates in terms of high temperatures. The city witnesses daytime temperatures hovering around 26°C, and evenings that remain near 18°C.

  • What is the coldest city in September in San José?
    • In our database, La Ese is the chilliest city in September in San José. Daytime temperatures typically peak at 23°C, while the nighttime lows hover around 16°C.

  • How much sun does San José get in September?
    • Most cities enjoy a balanced amount of sunshine, with around 149 hours of sunlight anticipated in San José. This ensures the days are neither too dim nor excessively sunny.

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