Last updated: August 28, 2025
In December, the average temperature in San Francisco, Venezuela is a warm 29°C (84°F), with daily highs reaching up to 35°C (96°F) and lows dipping to 23°C (73°F). During this time, expect minimal precipitation of around 13 mm (0.5 in) spread over about 4 days, paired with an average humidity of 68%. Enjoy the warmth while staying prepared for occasional showers!
In December in San Francisco, the average temperature is 29°C (84°F), with maximums reaching 35°C (96°F) and minimums dropping as low as 23°C (73°F). This warm and pleasant weather makes San Francisco an ideal destination for travelers looking to enjoy sunny days and comfortable evenings.
In San Francisco in December, the precipitation amount is 13 mm (0.5 in) over a span of 4 days.
In San Francisco in December, humidity is 68%. With an average temperature of 29°C (84°F), this humidity feels like a warm embrace, making outdoor adventures sticky yet invigorating, perfect for exploring lush landscapes or enjoying vibrant street life, though travelers should stay hydrated and take breaks in the shade.
In San Francisco in December, 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 San Francisco.
UV Risk Categories
Weather in San Francisco varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Francisco, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 28°C (83°F) | 8 mm (0.3 inches) | 65% | extreme |
| February Weather | 29°C (84°F) | 3 mm (0.1 inches) | 65% | extreme |
| March Weather | 29°C (84°F) | 22 mm (0.9 inches) | 64% | extreme |
| April Weather | 29°C (85°F) | 40 mm (1.6 inches) | 62% | extreme |
| May Weather | 29°C (85°F) | 97 mm (3.8 inches) | 63% | extreme |
| June Weather | 29°C (85°F) | 80 mm (3.2 inches) | 74% | extreme |
| July Weather | 30°C (86°F) | 58 mm (2.3 inches) | 81% | extreme |
| August Weather | 30°C (86°F) | 74 mm (2.9 inches) | 80% | extreme |
| September Weather | 30°C (85°F) | 83 mm (3.3 inches) | 76% | extreme |
| October Weather | 29°C (84°F) | 117 mm (4.6 inches) | 74% | extreme |
| November Weather | 28°C (83°F) | 104 mm (4.1 inches) | 72% | very high |
| December Weather | 29°C (84°F) | 13 mm (0.5 inches) | 68% | very high |