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August Weather in Laguna, Costa Rica

Last updated: August 23, 2025

In Laguna, Costa Rica, the average temperature in August hovers around 21°C (70°F). You can expect temperatures to range from a minimum of 16°C (62°F) to a maximum of 29°C (84°F). However, be prepared for some rain, as the area receives 273 mm (10.8 in) of precipitation over an average of 29 days. With an average humidity of 85%, it's a humid but comfortable time to experience all that this destination has to offer!

August Temperature in Laguna

In August in Laguna, the average temperature is 21°C (70°F). The maximum can reach 29°C (84°F), while the minimum can drop to as low as 16°C (62°F). This mild climate makes Laguna an ideal destination for travelers seeking comfortable weather and outdoor adventures.

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

The chart illustrates August temperature patterns in Laguna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Laguna, August typically has an average temperature of 21°C (70°F), with highs reaching up to 29°C (84°F) and lows dropping to around 16°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec676868707070707070696968
Data source: Temperature data for Laguna 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.

August Precipitation in Laguna

In Laguna in August, the precipitation amount is 273 mm (10.8 in) over the course of 29 days.

August Precipitation Trends in Laguna

The chart displays monthly precipitation patterns in Laguna, 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 Laguna, August typically receives around 273 mm (10.8 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec68283992306268241274288434228121
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Laguna

In Laguna in August, humidity is 85%. With an average temperature of 21°C (70°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel slightly stifling and requiring frequent breaks to refresh in the shade or near water.

August Average Humidity in Laguna

This chart illustrates the average monthly humidity levels in Laguna, 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 Laguna is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%70%68%69%70%81%88%85%84%82%81%74%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Laguna

In Laguna in August, 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 Laguna.

Maximum UV Index Levels in Laguna for August

The chart shows the monthly maximum UV Index (UVI) for Laguna 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 Laguna typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121314151414141313141110
Data source: Laguna 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 Laguna Compares to Other Months

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

This table compares monthly weather conditions in Laguna, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (67°F)67 mm (2.7 inches)71%extreme
February Weather20°C (68°F)28 mm (1.1 inches)70%extreme
March Weather20°C (69°F)38 mm (1.5 inches)68%extreme
April Weather21°C (71°F)92 mm (3.6 inches)69%extreme
May Weather21°C (71°F)306 mm (12.0 inches)70%extreme
June Weather21°C (71°F)268 mm (10.6 inches)81%extreme
July Weather21°C (70°F)241 mm (9.5 inches)88%extreme
August Weather21°C (70°F)273 mm (10.8 inches)85%extreme
September Weather21°C (70°F)288 mm (11.3 inches)84%extreme
October Weather21°C (69°F)434 mm (17.1 inches)82%extreme
November Weather20°C (69°F)228 mm (9.0 inches)81%extreme
December Weather20°C (68°F)121 mm (4.7 inches)74%very high

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