Best Time to Visit Foster City: Month-by-Month Guide
Best months for Foster City: July, August, September, June.
- Best months for Foster City: July, August, September, June.
- Peak season is September, August, July. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Shoulder season: March, April, May, June, October, November. Good weather without the busiest period.
- Wettest months: January, February, December.
- The weather is good almost all year.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 14°C | 7°C | 100 mm | 9 | – | – | 6.5 |
| February | 16°C | 8°C | 107 mm | 9 | – | – | 6.7 |
| March | 17°C | 9°C | 81 mm | 9 | – | – | 7.1 |
| April | 18°C | 10°C | 42 mm | 6 | – | – | 7.7 |
| May | 19°C | 11°C | 20 mm | 3 | – | – | 8.2 |
| June | 22°C | 12°C | 4 mm | 1 | – | – | 8.9 |
| July | 23°C | 14°C | 0 mm | 0 | – | – | 9.1 |
| August | 23°C | 14°C | 1 mm | 0 | – | – | 9.1 |
| September | 24°C | 14°C | 2 mm | 0 | – | – | 9.0 |
| October | 22°C | 12°C | 23 mm | 3 | – | – | 8.7 |
| November | 17°C | 10°C | 50 mm | 6 | – | – | 7.6 |
| December | 14°C | 8°C | 94 mm | 9 | – | – | 6.6 |
Frequently asked questions
When is the best time to visit Foster City?
The best months are July, August, September, June.
When is the rainy season in Foster City?
The wettest months are January, February, December.