Weather in San Francisco in January
San Francisco, Costa Rica averages a high of 24°C (75.2°F) and low of 16.4°C (61.5°F) in January, with 5 rain days and 10.7 hours of daily sunshine. Travel score: 87.5/100 (Excellent). The best time to visit San Francisco is February.
High
24°C75°F
Low
16°C62°F
🌧️
5
rain days
☀️
10.7
hrs/day sunshine
💧
79%
humidity
88— Excellent
January in San Francisco is warm and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in San Francisco?
How much does it rain in San Francisco in January?
San Francisco receives an average of 27.1mm of rainfall across 5 rainy days in January. The annual total is 2555.2mm.
What should I pack for San Francisco in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting Costa Rica in January?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31