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September Weather in Raymondville, United States

Last updated: June 24, 2025

In September, the average temperature in Raymondville, United States is a warm 28°C (83°F). While daytime highs can soar to a sweltering 38°C (100°F), nighttime lows may drop to a comfortable 17°C (64°F). Expect about 105 mm (4.1 in) of precipitation spread over 14 days, with an average humidity level of 73% adding to the tropical feel of the month.

September Temperature in Raymondville

In September in Raymondville, the average temperature is 28°C (83°F). Maximums can reach 38°C (100°F) and minimums can be as low as 17°C (64°F). This makes Raymondville a warm and inviting destination for travelers looking to enjoy sunny weather and outdoor activities.

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

The chart illustrates September temperature patterns in Raymondville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Raymondville, September typically has an average temperature of 28°C (83°F), with highs reaching up to 38°C (100°F) and lows dropping to around 17°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec616471768284868783776964
Data source: Temperature data for Raymondville 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 Raymondville

In Raymondville in September, the precipitation amount is 105 mm (4.1 in) over the course of 14 days.

September Precipitation Trends in Raymondville

The chart displays monthly precipitation patterns in Raymondville, 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 Raymondville, September typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec26213733961089338105623225
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Raymondville

In Raymondville in September, humidity is 73%. With an average temperature of 28°C (83°F), this humidity feels like a thick blanket enveloping your skin, making travel feel heavy and stifling, often requiring frequent breaks in shaded or air-conditioned areas to stay comfortable.

September Average Humidity in Raymondville

This chart illustrates the average monthly humidity levels in Raymondville, 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 Raymondville is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%79%76%77%80%73%66%65%73%76%80%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Raymondville

In Raymondville in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Raymondville.

Maximum UV Index Levels in Raymondville for September

The chart shows the monthly maximum UV Index (UVI) for Raymondville 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 Raymondville typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69101112121212111076
Data source: Raymondville 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 Raymondville Compares to Other Months

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

This table compares monthly weather conditions in Raymondville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (62°F)26 mm (1.0 inches)83%high
February Weather18°C (65°F)21 mm (0.8 inches)79%very high
March Weather22°C (72°F)37 mm (1.5 inches)76%very high
April Weather25°C (76°F)33 mm (1.3 inches)77%extreme
May Weather28°C (82°F)96 mm (3.8 inches)80%extreme
June Weather29°C (85°F)108 mm (4.2 inches)73%extreme
July Weather30°C (86°F)93 mm (3.7 inches)66%extreme
August Weather30°C (87°F)38 mm (1.5 inches)65%extreme
September Weather28°C (83°F)105 mm (4.1 inches)73%extreme
October Weather25°C (77°F)62 mm (2.4 inches)76%very high
November Weather20°C (69°F)32 mm (1.3 inches)80%high
December Weather18°C (64°F)25 mm (1.0 inches)86%high

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