Last updated: August 23, 2025
In July, the average temperature in San Sebastian, El Salvador is a warm 27°C (81°F), with daily fluctuations typically ranging from a comfortable 21°C (70°F) to a sizzling 36°C (98°F). Expect an average humidity of 77%, contributing to the region’s lush ambiance. However, be prepared for variability, as you might encounter 136 mm (5.4 in) of precipitation spread over 17 days throughout the month.
In July in San Sebastian, the average temperature is 27°C (81°F). Maximum temperatures can reach 36°C (98°F), while minimums can drop as low as 21°C (70°F). This warm climate makes San Sebastian an ideal destination for travelers seeking pleasant weather and outdoor activities.
In San Sebastian in July, the total precipitation amount is 136 mm (5.4 in) over the course of 17 days.
In San Sebastian in July, humidity is 77%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket, making travel feel sticky and heavy, as sweat clings to the skin and the air becomes thick, causing you to long for refreshing breezes and cool shade.
In San Sebastian in July, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Sebastian.
UV Risk Categories
Weather in San Sebastian varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in San Sebastian, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 26°C (79°F) | 2 mm (0.1 inches) | 63% | extreme |
| February Weather | 27°C (81°F) | 5 mm (0.2 inches) | 62% | extreme |
| March Weather | 28°C (83°F) | 5 mm (0.2 inches) | 59% | extreme |
| April Weather | 28°C (83°F) | 53 mm (2.1 inches) | 59% | extreme |
| May Weather | 27°C (81°F) | 311 mm (12.3 inches) | 59% | extreme |
| June Weather | 26°C (79°F) | 303 mm (11.9 inches) | 68% | extreme |
| July Weather | 27°C (81°F) | 136 mm (5.4 inches) | 77% | extreme |
| August Weather | 27°C (80°F) | 240 mm (9.5 inches) | 79% | extreme |
| September Weather | 26°C (79°F) | 277 mm (10.9 inches) | 77% | extreme |
| October Weather | 26°C (78°F) | 314 mm (12.3 inches) | 77% | extreme |
| November Weather | 26°C (79°F) | 66 mm (2.6 inches) | 75% | very high |
| December Weather | 26°C (79°F) | 7 mm (0.3 inches) | 66% | very high |