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September Weather in Fremont Hills, United States

Last updated: June 24, 2025

In September, the average temperature in Fremont Hills, United States hovers around 23°C (73°F). Expect a wide range, with minimums dipping to 7°C (45°F) and maximums soaring to 34°C (94°F). Precipitation during this month averages 52 mm (2.0 in), spread over about 6 days, while the humidity sits comfortably at 64%. Enjoy the dynamic weather!

September Temperature in Fremont Hills

In September in Fremont Hills, the average temperature is 23°C (73°F). Maximums can reach 34°C (94°F), and minimums can be as low as 7°C (45°F). This weather makes Fremont Hills an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Fremont Hills, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fremont Hills, September typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (94°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec353849556675797673594641
Data source: Temperature data for Fremont Hills 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 Fremont Hills

In Fremont Hills, in September, the precipitation amount is 52 mm (2.0 in) over the course of 6 days.

September Precipitation Trends in Fremont Hills

The chart displays monthly precipitation patterns in Fremont Hills, 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 Hills, September typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec87941501661779181117521416960
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fremont Hills

In Fremont Hills in September, humidity is 64%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel quite comfortable yet slightly sticky, urging travelers to enjoy leisurely activities early in the day or seek shade during peak hours.

September Average Humidity in Fremont Hills

This chart illustrates the average monthly humidity levels in Fremont Hills, 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 Hills is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fremont Hills

In Fremont Hills in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Fremont Hills.

Maximum UV Index Levels in Fremont Hills for September

The chart shows the monthly maximum UV Index (UVI) for Fremont Hills 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 Hills typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Fremont Hills 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 Hills Compares to Other Months

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

This table compares monthly weather conditions in Fremont Hills, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)87 mm (3.4 inches)81%moderate
February Weather3°C (38°F)94 mm (3.7 inches)78%high
March Weather9°C (49°F)150 mm (5.9 inches)76%high
April Weather13°C (56°F)166 mm (6.5 inches)78%very high
May Weather19°C (66°F)177 mm (7.0 inches)83%very high
June Weather24°C (75°F)91 mm (3.6 inches)83%extreme
July Weather26°C (79°F)81 mm (3.2 inches)78%extreme
August Weather25°C (77°F)117 mm (4.6 inches)68%very high
September Weather23°C (73°F)52 mm (2.0 inches)64%very high
October Weather15°C (59°F)141 mm (5.6 inches)70%high
November Weather8°C (46°F)69 mm (2.7 inches)83%moderate
December Weather5°C (42°F)59 mm (2.3 inches)87%moderate

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