September Weather in Welch, United States

Last updated: June 24, 2025

In September, the average temperature in Welch, United States hovers around 20°C (68°F), making it a pleasant time to visit. However, be prepared for some variability, as temperatures can dip as low as 4°C (40°F) and soar to a maximum of 33°C (91°F). During this month, expect 91 mm (3.6 in) of precipitation spread over 9 days, contributing to an average humidity of 68%. Plan accordingly to enjoy all that this destination has to offer!

September Temperature in Welch

In September in Welch, the average temperature is 20°C (68°F). Maximums can reach 33°C (91°F) and minimums can be as low as 4°C (40°F). Be prepared for a range of temperatures to make the most of your travel experience.

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

The chart illustrates September temperature patterns in Welch, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Welch, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (91°F) and lows dropping to around 4°C (40°F).

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

September Precipitation in Welch

In Welch in September, the precipitation amount is 91 mm (3.6 in) spread over 9 days.

September Precipitation Trends in Welch

The chart displays monthly precipitation patterns in Welch, 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 Welch, September typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 9 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Welch

In Welch in September humidity is 68%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls while also prompting travelers to stay hydrated and seek out refreshing breaks from the heat.

September Average Humidity in Welch

This chart illustrates the average monthly humidity levels in Welch, 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 Welch is approximately 68%, 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 Welch

In Welch 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 Welch.

Maximum UV Index Levels in Welch for September

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

Data source: Welch 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 Welch Compares to Other Months

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

This table compares monthly weather conditions in Welch, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (35°F)	99 mm (3.9 inches)	87%	moderate
February Weather	5°C (41°F)	161 mm (6.3 inches)	87%	high
March Weather	8°C (46°F)	126 mm (5.0 inches)	86%	very high
April Weather	12°C (54°F)	129 mm (5.1 inches)	84%	very high
May Weather	17°C (63°F)	143 mm (5.6 inches)	83%	extreme
June Weather	20°C (69°F)	126 mm (5.0 inches)	83%	extreme
July Weather	23°C (74°F)	82 mm (3.2 inches)	79%	extreme
August Weather	22°C (72°F)	96 mm (3.8 inches)	66%	very high
September Weather	20°C (68°F)	91 mm (3.6 inches)	68%	very high
October Weather	14°C (58°F)	123 mm (4.9 inches)	78%	high
November Weather	7°C (44°F)	79 mm (3.1 inches)	89%	moderate
December Weather	4°C (40°F)	120 mm (4.7 inches)	86%	moderate