Last updated: March 2, 2024
The weather in Pacifica, United States, during December is characterized by an average temperature of 12°C (53°F). Highs can soar to 17°C (63°F), while lows may dip to 7°C (45°F). Typically, the humidity level in Pacifica throughout December hovers around 79%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Pacifica averages 92 mm (3.6 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 9 hours 36 minutes of daylight, with the sun shining for approximately 6 hours 16 minutes each day. Additionally, there is a 35% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Pacifica reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 30 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 0 | 1 | 1 | 2 | 3 | 3 | 3 | 2 | 1 | 1 | 0 | 0 | 0 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||