September Weather in Jonestown, United States

Last updated: June 24, 2025

In Jonestown, United States, the average temperature in September is a pleasant 25°C (77°F). Expect a comfortable range, with minimums dropping to 12°C (54°F) and maximums soaring to 37°C (98°F). Visitors should prepare for some rain, with an average precipitation of 102 mm (4.0 in) spread over 6 days. The average humidity rests at a cozy 71%, making it a perfect time to explore!

September Temperature in Jonestown

In September in Jonestown, the average temperature is 25°C (77°F). Maximums can reach 37°C (98°F) and minimums can be as low as 12°C (54°F). It's an ideal time for travelers seeking warm weather while also enjoying some cooler evenings.

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

The chart illustrates September temperature patterns in Jonestown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jonestown, September typically has an average temperature of 25°C (77°F), with highs reaching up to 37°C (98°F) and lows dropping to around 12°C (54°F).

Data source: Temperature data for Jonestown generated using information from the Copernicus Climate Change Service.

September Precipitation in Jonestown

In Jonestown in September, the total precipitation amount is 102 mm (4.0 in) spread over a duration of 6 days.

September Precipitation Trends in Jonestown

The chart displays monthly precipitation patterns in Jonestown, 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 Jonestown, September typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Jonestown

In Jonestown in September humidity is 71%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace, making outdoor exploration a bit sticky but still enjoyable, especially if you take breaks in shaded areas and stay hydrated.

September Average Humidity in Jonestown

This chart illustrates the average monthly humidity levels in Jonestown, 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 Jonestown is approximately 71%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Jonestown

In Jonestown in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Jonestown.

Maximum UV Index Levels in Jonestown for September

The chart shows the monthly maximum UV Index (UVI) for Jonestown 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 Jonestown typically reaches 9, which falls under the very high exposure category.

Data source: Jonestown 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 Jonestown Compares to Other Months

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

This table compares monthly weather conditions in Jonestown, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	112 mm (4.4 inches)	84%	moderate
February Weather	9°C (48°F)	199 mm (7.8 inches)	83%	high
March Weather	14°C (58°F)	168 mm (6.6 inches)	81%	very high
April Weather	17°C (63°F)	146 mm (5.8 inches)	81%	very high
May Weather	23°C (73°F)	129 mm (5.1 inches)	83%	extreme
June Weather	26°C (79°F)	132 mm (5.2 inches)	83%	extreme
July Weather	28°C (82°F)	123 mm (4.8 inches)	81%	extreme
August Weather	27°C (81°F)	128 mm (5.0 inches)	74%	very high
September Weather	25°C (77°F)	102 mm (4.0 inches)	71%	very high
October Weather	19°C (66°F)	108 mm (4.2 inches)	76%	high
November Weather	11°C (52°F)	83 mm (3.3 inches)	84%	high
December Weather	9°C (49°F)	146 mm (5.8 inches)	88%	moderate