San Bruno Weather in October

October in San Bruno averages 21°C (70°F) during the day and 12°C (54°F) at night. The excellent conditions and low rainfall make it a solid month to visit.

Rainfall in San Bruno in October

Looking at the last 30 years, the data shows about 4 days with rain, averaging 23 mm (0.9 in) for the month. Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.

Temperature in San Bruno in October

October in San Bruno is generally excellent, with days reaching 21°C (70°F) and nights settling around 12°C (54°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 12°C (54°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in San Bruno in October

The month enjoys around 243 hours of sunshine, creating mostly sunny days with good weather conditions.

Wind Speed in San Bruno in October

October sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in October

The water temperature is 14°C (57°F), chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September and October typically offer the best weather for San Bruno.