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April Weather in Santo Isidoro, Portugal

Last updated: August 27, 2025

In April, the average temperature in Santo Isidoro, Portugal hovers around 14°C (58°F), with daily variations ranging from a cool 9°C (49°F) to a pleasant 21°C (69°F). Expect about 77 mm (3.0 in) of precipitation over 12 days, contributing to an average humidity level of 70%. Prepare for a mix of mild weather and occasional showers!

April Temperature in Santo Isidoro

In April in Santo Isidoro, the average temperature is 14°C (58°F). Maximums can reach 21°C (69°F) and minimums can drop as low as 9°C (49°F). This mild climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

April Weather in Santo Isidoro: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Santo Isidoro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Isidoro, April typically has an average temperature of 14°C (58°F), with highs reaching up to 21°C (69°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec555656576062646464635957
Data source: Temperature data for Santo Isidoro 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 Santo Isidoro

In Santo Isidoro in April, the precipitation amount is 77 mm (3.0 in) spread over 12 days.

April Precipitation Trends in Santo Isidoro

The chart displays monthly precipitation patterns in Santo Isidoro, 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 Santo Isidoro, April typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4863697739166632639982
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Santo Isidoro

In Santo Isidoro in April, humidity is 70%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace that can make outdoor activities feel sticky and exhausting, potentially limiting your exploration to cooler hours of the day.

April Average Humidity in Santo Isidoro

This chart illustrates the average monthly humidity levels in Santo Isidoro, 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 Santo Isidoro 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 Santo Isidoro

In Santo Isidoro 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 Santo Isidoro.

Maximum UV Index Levels in Santo Isidoro for April

The chart shows the monthly maximum UV Index (UVI) for Santo Isidoro 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 Santo Isidoro typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Santo Isidoro 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 Santo Isidoro Compares to Other Months

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

This table compares monthly weather conditions in Santo Isidoro, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)48 mm (1.9 inches)85%moderate
February Weather13°C (56°F)63 mm (2.5 inches)75%moderate
March Weather13°C (56°F)69 mm (2.7 inches)72%high
April Weather14°C (58°F)77 mm (3.0 inches)70%very high
May Weather16°C (61°F)39 mm (1.5 inches)70%very high
June Weather17°C (62°F)16 mm (0.6 inches)63%extreme
July Weather18°C (64°F)6 mm (0.2 inches)60%very high
August Weather18°C (64°F)6 mm (0.2 inches)60%very high
September Weather18°C (65°F)32 mm (1.3 inches)67%very high
October Weather17°C (63°F)63 mm (2.5 inches)74%high
November Weather15°C (60°F)99 mm (3.9 inches)83%moderate
December Weather14°C (58°F)82 mm (3.2 inches)85%moderate

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