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October Weather in Costa Rica, Brazil

Last updated: August 22, 2025

In October, the average temperature in Costa Rica, Brazil hovers around 24°C (76°F). Expect a wide temperature range, with minimums dipping to 9°C (48°F) and maximums soaring up to 40°C (104°F). During this month, you can anticipate about 176 mm (6.9 in) of precipitation spread over 13 days, while the average humidity sits at a comfortable 43%. Stay prepared for varied weather conditions!

October Temperature in Costa Rica

In October in Costa Rica, the average temperature is 24°C (76°F). Maximums can reach 40°C (104°F) and minimums can be as low as 9°C (48°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

October Weather in Costa Rica: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Costa Rica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Costa Rica, October typically has an average temperature of 24°C (76°F), with highs reaching up to 40°C (104°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec797877736865646775767778
Data source: Temperature data for Costa Rica generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Costa Rica

In Costa Rica in October, the precipitation amount is 176 mm (6.9 in) spread over 13 days.

October Precipitation Trends in Costa Rica

The chart displays monthly precipitation patterns in Costa Rica, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Costa Rica, October typically receives around 176 mm (6.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec160131146639888239557176100216
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Costa Rica

In Costa Rica in October humidity is 43%. With an average temperature of 24°C (76°F), this humidity feels like a comfortable embrace, perfect for exploring the outdoors without feeling too sticky or overheated.

October Average Humidity in Costa Rica

This chart illustrates the average monthly humidity levels in Costa Rica, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Costa Rica is approximately 43%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%82%76%67%61%52%42%42%43%68%84%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Costa Rica

In Costa Rica in October, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Costa Rica, you can check here.

Maximum UV Index Levels in Costa Rica for October

The chart shows the monthly maximum UV Index (UVI) for Costa Rica in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Costa Rica typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151311867911141515
Data source: Costa Rica October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How October Weather in Costa Rica Compares to Other Months

Weather in Costa Rica varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Costa Rica, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Costa Rica, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)160 mm (6.3 inches)85%extreme
February Weather25°C (78°F)131 mm (5.1 inches)83%extreme
March Weather25°C (77°F)146 mm (5.8 inches)82%extreme
April Weather23°C (73°F)63 mm (2.5 inches)76%extreme
May Weather20°C (68°F)98 mm (3.9 inches)67%very high
June Weather18°C (65°F)88 mm (3.5 inches)61%high
July Weather18°C (64°F)23 mm (0.9 inches)52%high
August Weather20°C (68°F)94 mm (3.7 inches)42%very high
September Weather24°C (75°F)57 mm (2.2 inches)42%extreme
October Weather24°C (76°F)176 mm (6.9 inches)43%extreme
November Weather25°C (77°F)100 mm (3.9 inches)68%extreme
December Weather26°C (78°F)216 mm (8.5 inches)84%extreme

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