nomadseason

September Weather in Fremont, United States

Last updated: June 24, 2025

In September, the average temperature in Fremont, United States is a pleasant 17°C (63°F). Temperatures can vary significantly, with minimums dipping to 2°C (35°F) and maximums reaching up to 32°C (90°F). Expect about 82 mm (3.2 in) of precipitation over approximately 10 days, accompanied by an average humidity of 78%.

September Temperature in Fremont

In September in Fremont, the average temperature is 17°C (63°F). Maximums can reach 32°C (90°F) and minimums can be as low as 2°C (35°F). This makes it a great time for travelers to experience a comfortable climate while enjoying the various outdoor activities that Fremont has to offer.

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

The chart illustrates September temperature patterns in Fremont, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fremont, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (90°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec202033435869737063503526
Data source: Temperature data for Fremont generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Fremont

In Fremont in September, the total precipitation amount is 82 mm (3.2 in) observed over a span of 10 days.

September Precipitation Trends in Fremont

The chart displays monthly precipitation patterns in Fremont, 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 Fremont, September typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec42506196103104112112821005054
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Fremont

In Fremont in September, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

September Average Humidity in Fremont

This chart illustrates the average monthly humidity levels in Fremont, 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 Fremont is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%87%84%77%75%75%73%78%84%89%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fremont

In Fremont in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Fremont.

Maximum UV Index Levels in Fremont for September

The chart shows the monthly maximum UV Index (UVI) for Fremont 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 Fremont typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101097532
Data source: Fremont 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 Fremont Compares to Other Months

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

This table compares monthly weather conditions in Fremont, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)42 mm (1.6 inches)89%moderate
February Weather-7°C (20°F)50 mm (2.0 inches)90%moderate
March Weather1°C (33°F)61 mm (2.4 inches)87%moderate
April Weather6°C (44°F)96 mm (3.8 inches)84%very high
May Weather14°C (58°F)103 mm (4.1 inches)77%very high
June Weather21°C (69°F)104 mm (4.1 inches)75%very high
July Weather23°C (74°F)112 mm (4.4 inches)74%very high
August Weather21°C (70°F)112 mm (4.4 inches)73%very high
September Weather17°C (63°F)82 mm (3.2 inches)78%high
October Weather10°C (50°F)100 mm (3.9 inches)84%moderate
November Weather2°C (35°F)50 mm (2.0 inches)89%moderate
December Weather-3°C (27°F)54 mm (2.1 inches)87%low

Compare Fremont's Climate with Cities Worldwide