August Weather in Siquirres, Costa Rica

Last updated: August 23, 2025

In August, the average temperature in Siquirres, Costa Rica hovers around 23°C (73°F), making it a pleasant time to visit. Expect a minimum of 18°C (65°F) and a comfortable maximum of 29°C (85°F). However, prepare for the possibility of rain, as the region experiences 189 mm (7.4 in) of precipitation spread over 27 days. With an average humidity of 82%, the atmosphere can feel quite humid, so pack accordingly!

August Temperature in Siquirres

In August in Siquirres, the average temperature is 23°C (73°F), where maximums can reach 29°C (85°F) and minimums can dip to as low as 18°C (65°F). This pleasant climate makes it an ideal time for outdoor activities and exploring the beauty of Siquirres.

August Weather in Siquirres: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Siquirres, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siquirres, August typically has an average temperature of 23°C (73°F), with highs reaching up to 29°C (85°F) and lows dropping to around 18°C (65°F).

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

August Precipitation in Siquirres

In Siquirres, in August, the precipitation amount is 189 mm (7.4 in) over the course of 27 days.

August Precipitation Trends in Siquirres

The chart displays monthly precipitation patterns in Siquirres, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Siquirres, August typically receives around 189 mm (7.4 inches) of precipitation spread over approximately 27 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Siquirres

In Siquirres in August, humidity is 82%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities feel a bit more strenuous but offering a tropical ambiance perfect for leisurely strolls and relaxed sightseeing.

August Average Humidity in Siquirres

This chart illustrates the average monthly humidity levels in Siquirres, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Siquirres is approximately 82%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Siquirres

In Siquirres in August, 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 Siquirres, you can check here.

Maximum UV Index Levels in Siquirres for August

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

Data source: Siquirres August 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 August Weather in Siquirres Compares to Other Months

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

This table compares monthly weather conditions in Siquirres, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (69°F)	191 mm (7.5 inches)	68%	extreme
February Weather	20°C (69°F)	114 mm (4.5 inches)	68%	extreme
March Weather	21°C (69°F)	122 mm (4.8 inches)	66%	extreme
April Weather	22°C (72°F)	128 mm (5.0 inches)	67%	extreme
May Weather	23°C (73°F)	458 mm (18.0 inches)	69%	extreme
June Weather	23°C (73°F)	235 mm (9.3 inches)	84%	extreme
July Weather	22°C (73°F)	224 mm (8.8 inches)	85%	extreme
August Weather	23°C (73°F)	189 mm (7.4 inches)	82%	extreme
September Weather	23°C (73°F)	176 mm (6.9 inches)	81%	extreme
October Weather	23°C (73°F)	461 mm (18.1 inches)	80%	extreme
November Weather	22°C (72°F)	349 mm (13.7 inches)	80%	extreme
December Weather	21°C (70°F)	265 mm (10.4 inches)	72%	very high