Foster City Weather in October

October in Foster City brings high temperatures, with daytime highs of 22°C (72°F) and nights around 12°C (54°F). The excellent weather makes it a solid choice for a visit.

Rainfall in Foster City in October

Looking at the last 30 years, the data shows about 4 days with rain, averaging 21 mm (0.8 in) for the month. The occasional light shower is possible, but rain is rarely an issue this month.

Temperature in Foster City in October

Weather in Foster City is at its excellent in October. Highs reach 22°C (72°F), while nights settle around 12°C (54°F). Overall, the month follows a fairly predictable daily temperature pattern. 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 Foster City in October

The city usually sees around 243 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Wind Speed in Foster City in October

Wind speeds average 4 m/s (8 knots) during October. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Average water temperature in October

With water at 14°C (57°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August, September and October typically offer the best circumstances for Foster City.