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April Weather in Castelo Branco, Portugal

Last updated: August 27, 2025

In Castelo Branco, Portugal, the average temperature in April hovers around 15°C (58°F). Expect a minimum of 2°C (36°F) and a maximum of 29°C (84°F). This month typically sees about 75 mm (2.9 in) of precipitation spread over 12 days, with an average humidity level of 70%. Get ready for a mix of delightful weather!

April Temperature in Castelo Branco

In April in Castelo Branco, the average temperature is 15°C (58°F). The maximum can reach 29°C (84°F), while the minimum can drop as low as 2°C (36°F). This weather makes Castelo Branco an ideal destination for travelers looking to enjoy mild temperatures and a variety of outdoor activities.

April Weather in Castelo Branco: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Castelo Branco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelo Branco, April typically has an average temperature of 15°C (58°F), with highs reaching up to 29°C (84°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec465154586671777773645450
Data source: Temperature data for Castelo Branco generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Castelo Branco

In Castelo Branco in April, the total precipitation amount is 75 mm (2.9 in) over the course of 12 days.

April Precipitation Trends in Castelo Branco

The chart displays monthly precipitation patterns in Castelo Branco, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Castelo Branco, April typically receives around 75 mm (2.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec3350787529123333537665
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Castelo Branco

In Castelo Branco in April humidity is 70%. With an average temperature of 15°C (58°F), this humidity feels like you’re walking through a warm, damp embrace, making outdoor activities slightly uncomfortable and ensuring that you stay hydrated while exploring.

April Average Humidity in Castelo Branco

This chart illustrates the average monthly humidity levels in Castelo Branco, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Castelo Branco is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Castelo Branco

In Castelo Branco in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Castelo Branco.

Maximum UV Index Levels in Castelo Branco for April

The chart shows the monthly maximum UV Index (UVI) for Castelo Branco in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Castelo Branco typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689111098643
Data source: Castelo Branco April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Castelo Branco Compares to Other Months

Weather in Castelo Branco varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Castelo Branco, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Castelo Branco, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)33 mm (1.3 inches)85%moderate
February Weather11°C (52°F)50 mm (2.0 inches)75%moderate
March Weather12°C (54°F)78 mm (3.1 inches)72%high
April Weather15°C (58°F)75 mm (2.9 inches)70%very high
May Weather19°C (67°F)29 mm (1.2 inches)70%very high
June Weather22°C (72°F)12 mm (0.5 inches)63%extreme
July Weather25°C (77°F)3 mm (0.1 inches)60%very high
August Weather25°C (78°F)3 mm (0.1 inches)60%very high
September Weather23°C (73°F)33 mm (1.3 inches)67%very high
October Weather18°C (65°F)53 mm (2.1 inches)74%high
November Weather12°C (54°F)76 mm (3.0 inches)83%moderate
December Weather10°C (50°F)65 mm (2.6 inches)85%moderate

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