Last updated: March 2, 2024
The weather in San Diego, Costa Rica, during October is characterized by an average temperature of 19°C (66°F). Highs can soar to 24°C (76°F), while lows may dip to 15°C (59°F). Typically, the humidity level in San Diego throughout October hovers around 80%.
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Average temperature
Maximum temperature
Humidity
In October, San Diego averages 517 mm (20.4 inches) of rainfall, typically over the course of 29 rainy days. The month enjoys an average of 11 hours 52 minutes of daylight, with the sun shining for approximately 7 hours 32 minutes each day. Additionally, there is a 13% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In October, the UV Index in San Diego reaches a maximum of 15, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 10 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 2 | 5 | 9 | 13 | 15 | 14 | 11 | 7 | 4 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | VeryHigh | Extreme | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 25 min | 30 min | 45 min | ||||||