Climate almanac
Hillsborough
California, US · 37.57°, -122.38°
What is the climate like in Hillsborough?
The best time to visit Hillsborough is typically April – November, with trip comfort peaking in September (8.1/10). Hillsborough is warmest in September, when daily highs average 66°F (19°C), and coolest in January, when lows fall to about 50°F (10°C). The wettest month is typically January and the driest is June; the year sees roughly 22 in of precipitation.
- Best time to visitApril – November — comfort peaks in September (8.1/10)
- Warmest monthSeptember — average high 66°F (19°C)
- Coolest monthJanuary — average low 50°F (10°C)
- Wettest monthJanuary (4.5 in)
- Driest monthJune (0.1 in)
- Annual precipitation22 in