Climate almanac
San Diego
Cartago Province, Costa Rica · 9.90°, -84.00°
What is the weather like in San Diego in October?
In October, San Diego is typically 73°F (23°C) during the day and 61°F (16°C) at night. The month brings about 20 in (514 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low61°F (16°C)
- Precipitation20 in (514 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)