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September Weather in Walsh, United States

Last updated: June 24, 2025

In September, the average temperature in Walsh, United States is a comfortable 22°C (72°F). However, be prepared for temperature variations, as it can dip to a chilly 1°C (35°F) or soar up to a sweltering 39°C (103°F). Expect some rainfall too, with an average precipitation of 32 mm (1.2 in) spread over 4 days. The average humidity during this time is 79%, contributing to a warm and humid atmosphere.

September Temperature in Walsh

In September in Walsh, the average temperature is 22°C (72°F). Maximums can reach 39°C (103°F), while minimums can drop as low as 1°C (35°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates September temperature patterns in Walsh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Walsh, September typically has an average temperature of 22°C (72°F), with highs reaching up to 39°C (103°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec363648546476797772564638
Data source: Temperature data for Walsh 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 Walsh

In Walsh in September, the total precipitation amount is 32 mm (1.2 in) over a span of 4 days.

September Precipitation Trends in Walsh

The chart displays monthly precipitation patterns in Walsh, 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 Walsh, September typically receives around 32 mm (1.2 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec16133345754143563225817
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Walsh

In Walsh in September humidity is 79%. With an average temperature of 22°C (72°F), this humidity feels like you are enveloped in a warm, heavy blanket, making it feel considerably hotter and adding a layer of stickiness to your skin as you navigate through the streets.

September Average Humidity in Walsh

This chart illustrates the average monthly humidity levels in Walsh, 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 Walsh is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%77%65%67%81%82%82%84%79%75%79%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Walsh

In Walsh 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 Walsh.

Maximum UV Index Levels in Walsh for September

The chart shows the monthly maximum UV Index (UVI) for Walsh 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 Walsh typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101112121110753
Data source: Walsh 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 Walsh Compares to Other Months

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

This table compares monthly weather conditions in Walsh, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)16 mm (0.6 inches)74%moderate
February Weather2°C (36°F)13 mm (0.5 inches)77%moderate
March Weather9°C (48°F)33 mm (1.3 inches)65%very high
April Weather12°C (55°F)45 mm (1.8 inches)67%very high
May Weather18°C (64°F)75 mm (2.9 inches)81%extreme
June Weather24°C (76°F)41 mm (1.6 inches)82%extreme
July Weather26°C (79°F)43 mm (1.7 inches)82%extreme
August Weather25°C (77°F)56 mm (2.2 inches)84%extreme
September Weather22°C (72°F)32 mm (1.2 inches)79%very high
October Weather13°C (56°F)25 mm (1.0 inches)75%high
November Weather8°C (47°F)8 mm (0.3 inches)79%moderate
December Weather3°C (38°F)17 mm (0.7 inches)83%moderate

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