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September Weather in Runaway Bay, United States

Last updated: June 24, 2025

The average temperature in Runaway Bay, United States during September is a warm 26°C (78°F), with minimum temperatures dropping to a cool 9°C (48°F) and reaching a sweltering maximum of 38°C (101°F). Visitors can expect 94 mm (3.7 in) of precipitation over 7 days, contributing to an average humidity of 64%.

September Temperature in Runaway Bay

In September in Runaway Bay, the average temperature is 26°C (78°F). Maximums can reach 38°C (101°F), while minimums can be as low as 9°C (48°F). Be prepared for a wide range of temperatures, making it an excellent time for both outdoor adventures and cozy indoor activities.

September Weather in Runaway Bay: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Runaway Bay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Runaway Bay, September typically has an average temperature of 26°C (78°F), with highs reaching up to 38°C (101°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec454759647481858478665550
Data source: Temperature data for Runaway Bay 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.

September Precipitation in Runaway Bay

In Runaway Bay in September, the precipitation amount is 94 mm (3.7 in) over a span of 7 days.

September Precipitation Trends in Runaway Bay

The chart displays monthly precipitation patterns in Runaway Bay, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Runaway Bay, September typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec43656869104713372941004645
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Runaway Bay

In Runaway Bay in September humidity is 64%. With an average temperature of 26°C (78°F), this humidity feels like a warm, thick blanket enveloping you, making travel slightly uncomfortable as you navigate the sticky air, leaving you yearning for a refreshing breeze or a cool drink.

September Average Humidity in Runaway Bay

This chart illustrates the average monthly humidity levels in Runaway Bay, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Runaway Bay is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%74%75%80%80%75%67%64%70%82%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Runaway Bay

In Runaway Bay in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Runaway Bay.

Maximum UV Index Levels in Runaway Bay for September

The chart shows the monthly maximum UV Index (UVI) for Runaway Bay in September, 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 September, the maximum UV index in Runaway Bay typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Runaway Bay September 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 September Weather in Runaway Bay Compares to Other Months

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

This table compares monthly weather conditions in Runaway Bay, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)43 mm (1.7 inches)77%moderate
February Weather8°C (47°F)65 mm (2.6 inches)76%high
March Weather15°C (59°F)68 mm (2.7 inches)74%very high
April Weather18°C (65°F)69 mm (2.7 inches)75%very high
May Weather23°C (74°F)104 mm (4.1 inches)80%extreme
June Weather27°C (82°F)71 mm (2.8 inches)80%extreme
July Weather30°C (86°F)33 mm (1.3 inches)75%extreme
August Weather29°C (85°F)72 mm (2.8 inches)67%extreme
September Weather26°C (78°F)94 mm (3.7 inches)64%very high
October Weather19°C (66°F)100 mm (3.9 inches)70%very high
November Weather13°C (55°F)46 mm (1.8 inches)82%high
December Weather10°C (50°F)45 mm (1.8 inches)85%moderate

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