Last updated: August 27, 2025
In April, San Martin del Castanar, Spain, the average temperature hovers around 11°C (52°F), with a minimum dipping to -2°C (28°F) and a maximum reaching 25°C (77°F). Expect 94 mm (3.7 in) of precipitation over 14 days, contributing to an average humidity of 77%. Whether you're navigating chilly days or enjoying brief warm spells, be prepared for a mix of weather!
In April in San Martin del Castanar, the average temperature is 11°C (52°F), with maximums reaching 25°C (77°F) and minimums dipping as low as -2°C (28°F). This variation makes it an ideal time for travelers to pack layers to prepare for both mild and chilly conditions.
In San Martin del Castanar in April, the precipitation amount is 94 mm (3.7 in) recorded over the course of 14 days.
In San Martin del Castanar in April humidity is 77%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable if not properly dressed, as the moisture in the air amplifies the cold, leaving travelers feeling cooler than expected.
In San Martin del Castanar in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in San Martin del Castanar.
UV Risk Categories
Weather in San Martin del Castanar varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in San Martin del Castanar, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (40°F) | 39 mm (1.5 inches) | 91% | moderate |
| February Weather | 7°C (45°F) | 68 mm (2.7 inches) | 85% | moderate |
| March Weather | 8°C (47°F) | 86 mm (3.4 inches) | 79% | high |
| April Weather | 11°C (52°F) | 94 mm (3.7 inches) | 77% | very high |
| May Weather | 16°C (60°F) | 45 mm (1.8 inches) | 76% | very high |
| June Weather | 20°C (68°F) | 28 mm (1.1 inches) | 64% | extreme |
| July Weather | 23°C (74°F) | 12 mm (0.5 inches) | 54% | extreme |
| August Weather | 23°C (74°F) | 13 mm (0.5 inches) | 52% | very high |
| September Weather | 19°C (67°F) | 43 mm (1.7 inches) | 63% | very high |
| October Weather | 14°C (58°F) | 76 mm (3.0 inches) | 78% | high |
| November Weather | 8°C (47°F) | 89 mm (3.5 inches) | 90% | moderate |
| December Weather | 6°C (44°F) | 87 mm (3.4 inches) | 91% | moderate |