Costa Rica temperatures in September

September in Costa Rica has maximum daytime temperatures ranging from high in Orosí with 23°C to very high temperatures in Santa Cruz with 31°C. Nighttime temperatures generally drop to 23°C in Santa Cruz and 15°C in Orosí.

What is the temperature of the different cities in Costa Rica in September?

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

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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 Costa Rica?
  • From a thorough analysis of our records, Santa Cruz clearly dominates in terms of high temperatures. The city witnesses daytime temperatures hovering around 31°C, and evenings that remain near 23°C.

  • What is the coldest city in September in Costa Rica?
  • According to our data, Orosí holds the title for the coldest city in Costa Rica in September. It experiences maximum temperatures of approximately 23°C and drops to lows of about 15°C during the night.

  • How much sun does Costa Rica get in September?
  • Most areas experience a moderate amount of sunshine, with approximately 159 hours of sunlight expected in Jacó. This makes it neither too gloomy nor overly bright.

  • What is the water's temperature in September?
  • The water temperature averages approximately 29°C in Limon this month, which is a bit warm water for swimming. For many people, water temperatures around 29°C might feel quite warm. Especially when compared to average swimming pool temperatures which are typically between 25°C and 28°C.

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