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September Weather in Valley Grande, United States

Last updated: June 24, 2025

In September, the average temperature in Valley Grande, United States hovers around 26°C (79°F), providing a warm and inviting climate. However, be prepared for temperature fluctuations, with minimums dipping to 11°C (52°F) and soaring to a maximum of 38°C (100°F). Expect around 84 mm (3.3 in) of precipitation spread over 9 days, contributing to an average humidity of 73%, creating a lush, vibrant atmosphere.

September Temperature in Valley Grande

In September in Valley Grande, the average temperature is 26°C (79°F). Maximums can reach 38°C (100°F), while minimums can be as low as 11°C (52°F). This variability makes it essential for travelers to pack accordingly to enjoy the pleasant weather.

September Weather in Valley Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Valley Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Valley Grande, September typically has an average temperature of 26°C (79°F), with highs reaching up to 38°C (100°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec495560657479818278705552
Data source: Temperature data for Valley Grande 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 Valley Grande

In Valley Grande in September, the precipitation amount is 84 mm (3.3 in) spread over 9 days.

September Precipitation Trends in Valley Grande

The chart displays monthly precipitation patterns in Valley Grande, 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 Valley Grande, September typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec1131321291401281291081108411882139
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Valley Grande

In Valley Grande in September, humidity is 73%. With an average temperature of 26°C (79°F), this humidity feels like a warm, sticky embrace, making travel slightly uncomfortable as you navigate through the heat with a constant sheen of sweat on your skin.

September Average Humidity in Valley Grande

This chart illustrates the average monthly humidity levels in Valley Grande, 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 Valley Grande is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%81%77%77%72%73%73%85%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Valley Grande

In Valley Grande 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 Valley Grande.

Maximum UV Index Levels in Valley Grande for September

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

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

This table compares monthly weather conditions in Valley Grande, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)113 mm (4.4 inches)85%moderate
February Weather13°C (55°F)132 mm (5.2 inches)84%high
March Weather16°C (61°F)129 mm (5.1 inches)82%very high
April Weather18°C (65°F)140 mm (5.5 inches)82%very high
May Weather23°C (74°F)128 mm (5.0 inches)81%extreme
June Weather26°C (79°F)129 mm (5.1 inches)77%extreme
July Weather27°C (82°F)108 mm (4.3 inches)77%extreme
August Weather28°C (82°F)110 mm (4.3 inches)72%extreme
September Weather26°C (79°F)84 mm (3.3 inches)73%very high
October Weather21°C (70°F)118 mm (4.6 inches)73%very high
November Weather13°C (55°F)82 mm (3.2 inches)85%high
December Weather11°C (52°F)139 mm (5.5 inches)88%moderate

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