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September Weather in Del Norte, United States

Last updated: June 24, 2025

In Del Norte, United States, the average temperature in September hovers around 14°C (57°F). Expect temperatures to range from a chilly -5°C (24°F) to a warm 30°C (86°F). During this month, you can anticipate about 36 mm (1.4 in) of precipitation spread over 6 days, with an average humidity of 70%—perfect for a cozy atmosphere!

September Temperature in Del Norte

In September in Del Norte, the average temperature is 14°C (57°F). Maximum temperatures can reach 30°C (86°F), while minimum temperatures can drop as low as -5°C (24°F). This diverse range of temperatures makes Del Norte an intriguing destination for travelers seeking both warm and cool experiences.

September Weather in Del Norte: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Del Norte, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Del Norte, September typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (86°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec202333415061656357443424
Data source: Temperature data for Del Norte 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 Del Norte

In Del Norte in September, the total precipitation amount is 36 mm (1.4 in), which falls over the course of 6 days.

September Precipitation Trends in Del Norte

The chart displays monthly precipitation patterns in Del Norte, 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 Del Norte, September typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec182327274625482836251722
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Del Norte

In Del Norte in September, humidity is 70%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket wrapping around you, making travel slightly uncomfortable as the air feels heavier and every step seems more laborious.

September Average Humidity in Del Norte

This chart illustrates the average monthly humidity levels in Del Norte, 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 Del Norte is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%75%68%62%55%54%61%70%78%81%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Del Norte

In Del Norte 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 Del Norte.

Maximum UV Index Levels in Del Norte for September

The chart shows the monthly maximum UV Index (UVI) for Del Norte 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 Del Norte typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4710121213131211864
Data source: Del Norte 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 Del Norte Compares to Other Months

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

This table compares monthly weather conditions in Del Norte, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)18 mm (0.7 inches)84%moderate
February Weather-5°C (23°F)23 mm (0.9 inches)84%high
March Weather0°C (33°F)27 mm (1.1 inches)74%very high
April Weather5°C (42°F)27 mm (1.0 inches)68%extreme
May Weather10°C (51°F)45 mm (1.8 inches)62%extreme
June Weather16°C (62°F)25 mm (1.0 inches)55%extreme
July Weather18°C (65°F)48 mm (1.9 inches)54%extreme
August Weather17°C (63°F)28 mm (1.1 inches)61%extreme
September Weather14°C (57°F)36 mm (1.4 inches)70%extreme
October Weather7°C (44°F)25 mm (1.0 inches)78%very high
November Weather1°C (34°F)17 mm (0.7 inches)81%high
December Weather-5°C (24°F)22 mm (0.9 inches)85%moderate

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