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September Weather in Joshua, United States

Last updated: June 24, 2025

In September, the average temperature in Joshua, United States is a warm 26°C (79°F). Visitors can expect a range that dips to a minimum of 10°C (50°F) and can peak at a sweltering 38°C (101°F). Be prepared for about 66 mm (2.6 in) of precipitation spread over 8 days, with an average humidity of 64%, creating a tropical feel throughout the month.

September Temperature in Joshua

In September in Joshua, the average temperature is 26°C (79°F), with maximums reaching as high as 38°C (101°F) and minimums dropping to as low as 10°C (50°F). Travelers should be prepared for warm days and cool nights during their visit.

September Weather in Joshua: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Joshua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Joshua, September typically has an average temperature of 26°C (79°F), with highs reaching up to 38°C (101°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec474961657482858579685752
Data source: Temperature data for Joshua 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 Joshua

In Joshua in September, the total precipitation amount is 66 mm (2.6 in) over the course of 8 days.

September Precipitation Trends in Joshua

The chart displays monthly precipitation patterns in Joshua, 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 Joshua, September typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec46838899145924595661294850
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Joshua

In Joshua in September, humidity is 64%. With an average temperature of 26°C (79°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as the air clings to your skin and the heat amplifies.

September Average Humidity in Joshua

This chart illustrates the average monthly humidity levels in Joshua, 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 Joshua 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 Joshua

In Joshua 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 Joshua.

Maximum UV Index Levels in Joshua for September

The chart shows the monthly maximum UV Index (UVI) for Joshua 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 Joshua typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Joshua 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 Joshua Compares to Other Months

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

This table compares monthly weather conditions in Joshua, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)46 mm (1.8 inches)77%moderate
February Weather10°C (49°F)83 mm (3.3 inches)76%high
March Weather16°C (61°F)88 mm (3.5 inches)74%very high
April Weather19°C (66°F)99 mm (3.9 inches)75%very high
May Weather24°C (75°F)145 mm (5.7 inches)80%extreme
June Weather28°C (82°F)92 mm (3.6 inches)80%extreme
July Weather30°C (85°F)45 mm (1.8 inches)75%extreme
August Weather29°C (85°F)95 mm (3.8 inches)67%extreme
September Weather26°C (79°F)66 mm (2.6 inches)64%very high
October Weather20°C (68°F)129 mm (5.1 inches)70%very high
November Weather14°C (57°F)48 mm (1.9 inches)82%high
December Weather11°C (52°F)50 mm (2.0 inches)85%moderate

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