September Weather in Pejibaye, Costa Rica

Last updated: August 23, 2025

In September, the average temperature in Pejibaye, Costa Rica hovers around 17°C (63°F). Visitors can expect a comfortable range, with minimums dropping to 12°C (55°F) and maximums reaching 24°C (76°F). However, be prepared for some rain, as precipitation totals around 279 mm (11.0 in) over 27 days. With an average humidity of 81%, it's a great time to enjoy the lush surroundings!

September Temperature in Pejibaye

In September, in Pejibaye, the average temperature is 17°C (63°F), with maximums reaching 24°C (76°F) and minimums dipping as low as 12°C (55°F). This mild and pleasant weather makes it a great time for travelers to explore the sights and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Pejibaye, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pejibaye, September typically has an average temperature of 17°C (63°F), with highs reaching up to 24°C (76°F) and lows dropping to around 12°C (55°F).

Data source: Temperature data for Pejibaye generated using information from the Copernicus Climate Change Service.

September Precipitation in Pejibaye

In Pejibaye in September, the precipitation amount is 279 mm (11.0 in) over the course of 27 days.

September Precipitation Trends in Pejibaye

The chart displays monthly precipitation patterns in Pejibaye, 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 Pejibaye, September typically receives around 279 mm (11.0 inches) of precipitation spread over approximately 27 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Pejibaye

In Pejibaye in September humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

September Average Humidity in Pejibaye

This chart illustrates the average monthly humidity levels in Pejibaye, 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 Pejibaye is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Pejibaye

In Pejibaye in September, 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 Pejibaye, you can check here.

Maximum UV Index Levels in Pejibaye for September

The chart shows the monthly maximum UV Index (UVI) for Pejibaye 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 Pejibaye typically reaches 14, which falls under the extreme exposure category.

Data source: Pejibaye 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 Pejibaye Compares to Other Months

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

This table compares monthly weather conditions in Pejibaye, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (60°F)	67 mm (2.6 inches)	68%	extreme
February Weather	16°C (61°F)	34 mm (1.3 inches)	68%	extreme
March Weather	16°C (61°F)	35 mm (1.4 inches)	66%	extreme
April Weather	17°C (63°F)	94 mm (3.7 inches)	67%	extreme
May Weather	18°C (64°F)	418 mm (16.4 inches)	69%	extreme
June Weather	18°C (64°F)	240 mm (9.4 inches)	84%	extreme
July Weather	17°C (63°F)	203 mm (8.0 inches)	85%	extreme
August Weather	17°C (63°F)	224 mm (8.8 inches)	82%	extreme
September Weather	17°C (63°F)	279 mm (11.0 inches)	81%	extreme
October Weather	17°C (63°F)	430 mm (16.9 inches)	80%	extreme
November Weather	17°C (62°F)	234 mm (9.2 inches)	80%	extreme
December Weather	16°C (61°F)	116 mm (4.6 inches)	72%	extreme