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September Weather in Chacarita, Costa Rica

Last updated: August 23, 2025

In September in Chacarita, Costa Rica, the average temperature is a comfortable 25°C (77°F). You can expect minimum temperatures around 22°C (72°F) and can enjoy balmy maximums of 30°C (86°F). However, be prepared for significant precipitation, as 422 mm (16.6 in) can fall over 30 days, coupled with an average humidity level of 81%.

September Temperature in Chacarita

In September in Chacarita, the average temperature is 25°C (77°F). Maximum temperatures can reach 30°C (86°F), while minimums can drop to 22°C (72°F). It's an ideal time for travelers seeking warm weather and enjoyable outdoor activities.

September Weather in Chacarita: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Chacarita, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chacarita, September typically has an average temperature of 25°C (77°F), with highs reaching up to 30°C (86°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec788080797878787877777777
Data source: Temperature data for Chacarita 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.

September Precipitation in Chacarita

In Chacarita in September, the precipitation amount is 422 mm (16.6 in) over the course of 30 days.

September Precipitation Trends in Chacarita

The chart displays monthly precipitation patterns in Chacarita, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Chacarita, September typically receives around 422 mm (16.6 inches) of precipitation spread over approximately 30 days.
JanFebMarAprMayJunJulAugSepOctNovDec29142014742442136542142264327689
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chacarita

In Chacarita in September, humidity is 81%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, thick blanket, making traveling quite challenging as you may feel sticky and sluggish, requiring frequent breaks to stay refreshed and hydrated.

September Average Humidity in Chacarita

This chart illustrates the average monthly humidity levels in Chacarita, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Chacarita is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%68%66%67%69%84%85%82%81%80%80%73%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chacarita

In Chacarita in September, 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 Chacarita.

Maximum UV Index Levels in Chacarita for September

The chart shows the monthly maximum UV Index (UVI) for Chacarita in September, 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 September, the maximum UV index in Chacarita typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111314141414131313131110
Data source: Chacarita September 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 September Weather in Chacarita Compares to Other Months

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

This table compares monthly weather conditions in Chacarita, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (78°F)29 mm (1.1 inches)68%extreme
February Weather26°C (80°F)14 mm (0.5 inches)68%extreme
March Weather27°C (81°F)20 mm (0.8 inches)66%extreme
April Weather26°C (79°F)147 mm (5.8 inches)67%extreme
May Weather26°C (78°F)424 mm (16.7 inches)69%extreme
June Weather26°C (78°F)421 mm (16.6 inches)84%extreme
July Weather26°C (78°F)365 mm (14.4 inches)85%extreme
August Weather25°C (78°F)421 mm (16.6 inches)82%extreme
September Weather25°C (77°F)422 mm (16.6 inches)81%extreme
October Weather25°C (77°F)643 mm (25.3 inches)80%extreme
November Weather25°C (77°F)275 mm (10.8 inches)80%extreme
December Weather25°C (78°F)89 mm (3.5 inches)72%very high

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