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August Weather in Siuna, Nicaragua

Last updated: August 31, 2025

In Siuna, Nicaragua during August, the average temperature hovers around 25°C (78°F). Expect a minimum of 21°C (69°F) and a maximum reaching 32°C (91°F). While you soak up the sun, be prepared for precipitation of about 187 mm (7.3 in) over 28 days. With an average humidity of 73%, it’s a month that beautifully blends warmth and occasional showers.

August Temperature in Siuna

In August in Siuna, the average temperature is 25°C (78°F). Maximums can reach 32°C (91°F) and minimums can drop to 21°C (69°F). This pleasant climate makes Siuna an ideal destination for travelers seeking warm and enjoyable weather.

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

The chart illustrates August temperature patterns in Siuna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siuna, August typically has an average temperature of 25°C (78°F), with highs reaching up to 32°C (91°F) and lows dropping to around 21°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec747677798078787878777675
Data source: Temperature data for Siuna 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 Siuna

In Siuna in August, the precipitation amount is 187 mm (7.3 in) over the course of 28 days.

August Precipitation Trends in Siuna

The chart displays monthly precipitation patterns in Siuna, 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 Siuna, August typically receives around 187 mm (7.3 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec4950615725924018918718324417868
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Siuna

In Siuna in August, humidity is 73%. With an average temperature of 25°C (78°F), this humidity feels like stepping into a warm, heavy blanket that wraps around you, making travel feel sluggish and requiring regular breaks to stay refreshed.

August Average Humidity in Siuna

This chart illustrates the average monthly humidity levels in Siuna, 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 Siuna is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%68%67%67%68%73%76%73%72%71%71%69%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Siuna

In Siuna 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 Siuna.

Maximum UV Index Levels in Siuna for August

The chart shows the monthly maximum UV Index (UVI) for Siuna 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 Siuna typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141313131313109
Data source: Siuna 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 Siuna Compares to Other Months

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

This table compares monthly weather conditions in Siuna, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)49 mm (1.9 inches)68%very high
February Weather24°C (76°F)50 mm (2.0 inches)68%extreme
March Weather25°C (77°F)61 mm (2.4 inches)67%extreme
April Weather26°C (80°F)57 mm (2.2 inches)67%extreme
May Weather26°C (80°F)259 mm (10.2 inches)68%extreme
June Weather26°C (79°F)240 mm (9.4 inches)73%extreme
July Weather26°C (78°F)189 mm (7.4 inches)76%extreme
August Weather25°C (78°F)187 mm (7.3 inches)73%extreme
September Weather26°C (79°F)183 mm (7.2 inches)72%extreme
October Weather25°C (78°F)244 mm (9.6 inches)71%extreme
November Weather25°C (77°F)177 mm (7.0 inches)71%very high
December Weather24°C (75°F)67 mm (2.7 inches)69%very high

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