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September Weather in Monument Beach, United States

Last updated: June 24, 2025

In September, the average temperature in Monument Beach, United States hovers around 19°C (67°F), creating a comfortable atmosphere for exploration. However, be prepared for a minimum of 11°C (53°F) and a maximum of 28°C (82°F), so layering your wardrobe is wise. With precipitation amounts reaching 108 mm (4.2 in) over 10 days and an average humidity of 75%, it's a great time to embrace the local scenery and enjoy the lush environments that come with the season.

September Temperature in Monument Beach

In September in Monument Beach, the average temperature is 19°C (67°F), with maximums reaching 28°C (82°F) and minimums dipping down to 11°C (53°F). It’s a pleasant time to visit, perfect for outdoor activities and exploring the sights.

September Weather in Monument Beach: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Monument Beach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monument Beach, September typically has an average temperature of 19°C (67°F), with highs reaching up to 28°C (82°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec343639475666737367584739
Data source: Temperature data for Monument Beach 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 Monument Beach

In Monument Beach in September, the precipitation amount is 108 mm (4.2 in) distributed over a duration of 10 days.

September Precipitation Trends in Monument Beach

The chart displays monthly precipitation patterns in Monument Beach, 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 Monument Beach, September typically receives around 108 mm (4.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8610311212510287917810815193121
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Monument Beach

In Monument Beach in September humidity is 75%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace, making travel invigorating yet slightly sticky, as you navigate through the vibrant streets or scenic landscapes.

September Average Humidity in Monument Beach

This chart illustrates the average monthly humidity levels in Monument Beach, 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 Monument Beach is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Monument Beach

In Monument Beach in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Monument Beach.

Maximum UV Index Levels in Monument Beach for September

The chart shows the monthly maximum UV Index (UVI) for Monument Beach 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 Monument Beach typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998642
Data source: Monument Beach 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 Monument Beach Compares to Other Months

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

This table compares monthly weather conditions in Monument Beach, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)86 mm (3.4 inches)84%moderate
February Weather2°C (36°F)103 mm (4.1 inches)84%moderate
March Weather4°C (39°F)112 mm (4.4 inches)82%high
April Weather8°C (47°F)125 mm (4.9 inches)79%very high
May Weather13°C (56°F)102 mm (4.0 inches)75%very high
June Weather19°C (66°F)87 mm (3.4 inches)78%very high
July Weather23°C (73°F)91 mm (3.6 inches)76%very high
August Weather23°C (73°F)78 mm (3.1 inches)76%very high
September Weather19°C (67°F)108 mm (4.2 inches)75%very high
October Weather15°C (59°F)151 mm (5.9 inches)75%high
November Weather8°C (47°F)93 mm (3.7 inches)80%moderate
December Weather4°C (39°F)121 mm (4.8 inches)80%low

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