Last updated: June 24, 2025
In Fremont, United States, the average temperature in September hovers around 20°C (69°F). Visitors can expect a range, with temperatures dipping as low as 8°C (47°F) and peaking at a sizzling 43°C (110°F). Rainfall is minimal, averaging just 2 mm (0.1 in) across 0 days, while humidity remains reasonably comfortable at 55%. Enjoy the pleasant weather!
In September in Fremont, the average temperature is 20°C (69°F). The maximum can reach 43°C (110°F) and the minimum can be as low as 8°C (47°F). It's important to pack for both warmth and heat when traveling during this month.
In Fremont in September, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.
In Fremont in September humidity is 55%. With an average temperature of 20°C (69°F), this humidity feels like a refreshing embrace, making it ideal for exploring the local sights while still requiring a light layer to stay comfortable.
In Fremont 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.
UV Risk Categories
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.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 10°C (51°F) | 98 mm (3.9 inches) | 82% | moderate |
February Weather | 11°C (52°F) | 95 mm (3.8 inches) | 84% | moderate |
March Weather | 12°C (54°F) | 87 mm (3.4 inches) | 82% | very high |
April Weather | 14°C (57°F) | 30 mm (1.2 inches) | 78% | very high |
May Weather | 16°C (61°F) | 23 mm (0.9 inches) | 71% | very high |
June Weather | 19°C (66°F) | 1 mm (0.0 inches) | 64% | extreme |
July Weather | 20°C (69°F) | 0 mm (0.0 inches) | 58% | extreme |
August Weather | 21°C (70°F) | 0 mm (0.0 inches) | 54% | very high |
September Weather | 20°C (69°F) | 2 mm (0.1 inches) | 55% | very high |
October Weather | 18°C (64°F) | 22 mm (0.9 inches) | 62% | high |
November Weather | 13°C (56°F) | 40 mm (1.6 inches) | 78% | moderate |
December Weather | 10°C (51°F) | 81 mm (3.2 inches) | 80% | moderate |