Best Time to Visit San Francisco for Hiking – May Scores 92/100

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Outdoor activities Potential

92/100

Excellent

Based on optimal climate

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Seasonality

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Best Time

May, October, April

Avoid

January, December

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Weather

11°C – 19°C

Avg Temp Range

Precipitation

Generally dry

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Good For

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🥾 Planning a hiking trip to San Francisco?

The best time to visit San Francisco for hiking is May, October, April, when trail conditions are most favorable and the weather is more stable.

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Climate Heatmap

See at a glance which months offer the best outdoor activities conditions — based on temperature, rainfall and climate scores.

Summer offers the most reliable hiking conditions in San Francisco, with open trails and longer daylight hours.

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Outdoor activities conditions breakdown

Monthly weather & climate data for San Francisco

Month	Climate Score	Predictability	Avg Temp	Max Temp	Rain (mm)	Rain Days	Humidity	Season
January	67Suboptimal Cool temperatures. High rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	11°	14°	105	9.2	73%	shoulder
February	75Good Cool temperatures. Some rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	12°	16°	99	10	73%	shoulder
March	79Good Cool temperatures. Some rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	13°	17°	76	9.5	70%	shoulder
April	87Excellent Cool temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	14°	18°	37	6.3	69%	dry
May	92Excellent Mild temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	16°	20°	10	4.1	70%	dry
June	65Suboptimal Mild temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	17°	21°	4	1.7	70%	dry
July	65Suboptimal Mild temperatures. Mostly dry conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	18°	22°	0	0.3	72%	dry
August	65Suboptimal Mild temperatures. Mostly dry conditions.	Predictability 60Weather conditions vary somewhat by season.	18°	22°	1	0.6	74%	dry
September	65Suboptimal Mild temperatures. Mostly dry conditions.	Predictability 60Weather conditions vary somewhat by season.	19°	23°	2	1	71%	dry
October	90Excellent Mild temperatures. Mostly dry conditions.	Predictability 60Weather conditions vary somewhat by season.	17°	21°	28	3.6	69%	dry
November	84Excellent Cool temperatures. Some rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	14°	18°	54	7.2	71%	shoulder
December	67Suboptimal Cool temperatures. High rain conditions.	Predictability 100Weather conditions are fairly consistent throughout the year.	11°	14°	100	10.3	74%	shoulder