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August Weather in Stock Island, United States

Last updated: June 24, 2025

In Stock Island, United States, the average temperature in August hovers around 29°C (84°F). You can expect a minimum of 25°C (78°F) and a maximum of 30°C (87°F). During this month, average precipitation amounts to 100 mm (3.9 in), falling over approximately 15 days, and with an average humidity of 72%, the climate is sure to make its presence felt.

August Temperature in Stock Island

In August in Stock Island, the average temperature is 29°C (84°F), with maximums reaching 30°C (87°F) and minimums dipping as low as 25°C (78°F). This makes it an ideal time for travelers seeking warm and pleasant weather.

August Weather in Stock Island: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Stock Island, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stock Island, August typically has an average temperature of 29°C (84°F), with highs reaching up to 30°C (87°F) and lows dropping to around 25°C (78°F).
JanFebMarAprMayJunJulAugSepOctNovDec717374777982838482817774
Data source: Temperature data for Stock Island 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 Stock Island

In Stock Island in August, the precipitation amount is 100 mm (3.9 in) over a span of 15 days.

August Precipitation Trends in Stock Island

The chart displays monthly precipitation patterns in Stock Island, 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 Stock Island, August typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec27271840139941031001721338344
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Stock Island

In Stock Island in August humidity is 72%. With an average temperature of 29°C (84°F), this humidity feels like walking through a warm, damp sponge, making travel uncomfortable as the heat clings to your skin and drains your energy.

August Average Humidity in Stock Island

This chart illustrates the average monthly humidity levels in Stock Island, 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 Stock Island is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%80%76%73%71%70%70%72%76%79%80%81%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Stock Island

In Stock Island in August, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Stock Island.

Maximum UV Index Levels in Stock Island for August

The chart shows the monthly maximum UV Index (UVI) for Stock Island 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 Stock Island typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79111212131212111086
Data source: Stock Island 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 Stock Island Compares to Other Months

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

This table compares monthly weather conditions in Stock Island, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (71°F)27 mm (1.1 inches)81%high
February Weather23°C (74°F)27 mm (1.1 inches)79%very high
March Weather23°C (74°F)18 mm (0.7 inches)76%extreme
April Weather25°C (77°F)40 mm (1.6 inches)73%extreme
May Weather26°C (79°F)139 mm (5.5 inches)71%extreme
June Weather28°C (82°F)94 mm (3.7 inches)69%extreme
July Weather28°C (83°F)103 mm (4.0 inches)70%extreme
August Weather29°C (84°F)100 mm (3.9 inches)72%extreme
September Weather28°C (83°F)172 mm (6.8 inches)76%extreme
October Weather27°C (81°F)133 mm (5.2 inches)79%very high
November Weather25°C (77°F)83 mm (3.3 inches)80%very high
December Weather23°C (74°F)44 mm (1.7 inches)81%high

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