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October Weather in Costa Rica, Mexico

Last updated: August 26, 2025

In October, the average temperature in Costa Rica, Mexico hovers around 23°C (74°F), perfect for outdoor adventures. Expect temperatures to range from a comfortable 16°C (60°F) to a warm 33°C (91°F). However, be prepared for some rain, as 180 mm (7.1 in) of precipitation falls over 19 days, coupled with a high average humidity of 83%. Enjoy the climate while staying hydrated!

October Temperature in Costa Rica

In October in Costa Rica, the average temperature is 23°C (74°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as 16°C (60°F). This pleasant climate makes it a great time to explore the sights and enjoy outdoor activities.

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 23°C (74°F), with highs reaching up to 33°C (91°F) and lows dropping to around 16°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec707275787875757675737270
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 amounts to 180 mm (7.1 in) over a span of 19 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 180 mm (7.1 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec138621118305811372161804214
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 83%. With an average temperature of 23°C (74°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier, and leaving you constantly in search of a cool breeze or shade while exploring.

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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%68%59%57%65%66%75%82%82%83%80%76%
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 reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Costa Rica.

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 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11131415141415141413119
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 Weather21°C (70°F)13 mm (0.5 inches)76%extreme
February Weather22°C (72°F)8 mm (0.3 inches)68%extreme
March Weather24°C (75°F)6 mm (0.2 inches)59%extreme
April Weather26°C (78°F)21 mm (0.8 inches)57%extreme
May Weather26°C (79°F)118 mm (4.6 inches)65%extreme
June Weather24°C (75°F)305 mm (12.0 inches)66%extreme
July Weather24°C (76°F)81 mm (3.2 inches)75%extreme
August Weather24°C (76°F)137 mm (5.4 inches)82%extreme
September Weather24°C (75°F)216 mm (8.5 inches)82%extreme
October Weather23°C (74°F)180 mm (7.1 inches)83%extreme
November Weather22°C (72°F)42 mm (1.6 inches)80%extreme
December Weather21°C (71°F)14 mm (0.5 inches)76%very high

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