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August Weather in Rio Segundo, Costa Rica

Last updated: August 23, 2025

In Rio Segundo, Costa Rica, the average temperature in August stands at a comfortable 21°C (70°F). Expect minimums around 16°C (62°F) and delightful highs reaching 29°C (84°F). However, be prepared for ample rainfall, with 273 mm (10.7 in) of precipitation spread over 29 days, contributing to an average humidity of 85%.

August Temperature in Rio Segundo

In August in Rio Segundo, 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 Rio Segundo an ideal destination for travelers seeking comfortable weather and outdoor adventures.

August Weather in Rio Segundo: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Rio Segundo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Segundo, 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).
JanFebMarAprMayJunJulAugSepOctNovDec666667697070696970696867
Data source: Temperature data for Rio Segundo 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 Rio Segundo

In Rio Segundo in August, the total precipitation amount is 273 mm (10.7 in) spread over 29 days.

August Precipitation Trends in Rio Segundo

The chart displays monthly precipitation patterns in Rio Segundo, 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 Rio Segundo, August typically receives around 273 mm (10.7 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec1094857113310275275273287402272192
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Rio Segundo

In Rio Segundo 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 Rio Segundo

This chart illustrates the average monthly humidity levels in Rio Segundo, 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 Rio Segundo 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 Rio Segundo

In Rio Segundo 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 Rio Segundo.

Maximum UV Index Levels in Rio Segundo for August

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

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

This table compares monthly weather conditions in Rio Segundo, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (66°F)109 mm (4.3 inches)71%extreme
February Weather19°C (66°F)48 mm (1.9 inches)70%extreme
March Weather19°C (67°F)57 mm (2.2 inches)68%extreme
April Weather21°C (69°F)113 mm (4.5 inches)69%extreme
May Weather21°C (70°F)310 mm (12.2 inches)70%extreme
June Weather21°C (70°F)275 mm (10.8 inches)81%extreme
July Weather21°C (69°F)275 mm (10.8 inches)88%extreme
August Weather21°C (70°F)273 mm (10.7 inches)85%extreme
September Weather21°C (70°F)287 mm (11.3 inches)84%extreme
October Weather21°C (69°F)402 mm (15.8 inches)82%extreme
November Weather20°C (68°F)272 mm (10.7 inches)81%extreme
December Weather19°C (67°F)192 mm (7.6 inches)74%very high

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