May Weather in Castelo Branco

Last updated: March 2, 2024

The weather in Castelo Branco, Portugal, during May is characterized by an average temperature of 17°C (62°F). Highs can soar to 19°C (66°F), while lows may dip to 13°C (56°F). Typically, the humidity level in Castelo Branco throughout May hovers around 83%.

13°C (56°F)

Minimum temperature

17°C (62°F)

Average temperature

19°C (66°F)

Maximum temperature

83%

Humidity

Precipitation and Sunshine hours

In May, Castelo Branco averages 63 mm (2.5 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 14 hours 16 minutes of daylight, with the sun shining for approximately 10 hours 47 minutes each day. Additionally, there is a 30% probability of sunny days during this period.

63 mm (2.5 inches)

Precipitation

11 rainy days

Rainy days

10 hours 47 minutes

Sunshine hours

30%

Chance of sun

UV Index

In May, the UV Index in Castelo Branco reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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 1 1 2 4 6 8 10 10 9 7 5 3 1
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

Compare Castelo Branco's Climate with Cities Worldwide