Last updated: August 27, 2025
In Castellar de Santisteban, Spain, the average temperature in May hovers around 20°C (68°F). However, visitors should be prepared for a temperature range that can dip to a minimum of 4°C (39°F) and soar to a maximum of 38°C (100°F). During this month, precipitation averages 28 mm (1.1 in) over the course of about 6 days, and the average humidity sits at a comfortable 56%.
In May in Castellar de Santisteban, the average temperature is 20°C (68°F), with maximums reaching 38°C (100°F) and minimums dropping as low as 4°C (39°F). It's advisable to pack both lightweight clothing for the warm days and warmer layers for the cooler evenings while planning your trip.
In Castellar de Santisteban in May, the precipitation amount is 28 mm (1.1 in) over the course of 6 days.
In Castellar de Santisteban in May humidity is 56%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making traveling enjoyable yet slightly sticky, as the air wraps around you, urging you to hydrate often and seek out refreshing spots along your journey.
In Castellar de Santisteban in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Castellar de Santisteban.
UV Risk Categories
Weather in Castellar de Santisteban varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Castellar de Santisteban, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (44°F) | 42 mm (1.7 inches) | 85% | moderate |
| February Weather | 10°C (50°F) | 41 mm (1.6 inches) | 78% | moderate |
| March Weather | 12°C (53°F) | 76 mm (3.0 inches) | 66% | high |
| April Weather | 14°C (58°F) | 76 mm (3.0 inches) | 60% | very high |
| May Weather | 20°C (68°F) | 28 mm (1.1 inches) | 56% | very high |
| June Weather | 25°C (77°F) | 14 mm (0.6 inches) | 44% | extreme |
| July Weather | 29°C (84°F) | 4 mm (0.2 inches) | 44% | extreme |
| August Weather | 29°C (84°F) | 12 mm (0.5 inches) | 42% | very high |
| September Weather | 24°C (75°F) | 23 mm (0.9 inches) | 53% | very high |
| October Weather | 18°C (65°F) | 40 mm (1.6 inches) | 70% | high |
| November Weather | 11°C (53°F) | 79 mm (3.1 inches) | 83% | moderate |
| December Weather | 9°C (48°F) | 67 mm (2.6 inches) | 86% | moderate |