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April Weather in Sao Joao, Portugal

Last updated: August 27, 2025

In April, the average temperature in Sao Joao, Portugal hovers around 14°C (57°F). You can expect a minimum temperature of 3°C (37°F) and a maximum of 29°C (84°F). During this time, precipitation typically amounts to 144 mm (5.7 in) over about 14 days, contributing to an average humidity of 79%.

April Temperature in Sao Joao

In April in Sao Joao, the average temperature is 14°C (57°F), with maximums reaching 29°C (84°F) and minimums dipping as low as 3°C (37°F). Be prepared for a range of temperatures while traveling to Sao Joao this month, and pack accordingly for both warmer days and cooler evenings.

April Weather in Sao Joao: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Sao Joao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Joao, April typically has an average temperature of 14°C (57°F), with highs reaching up to 29°C (84°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec485153576264696967615451
Data source: Temperature data for Sao Joao 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 Sao Joao

In Sao Joao in April, the precipitation amount is 144 mm (5.7 in) over the course of 14 days.

April Precipitation Trends in Sao Joao

The chart displays monthly precipitation patterns in Sao Joao, 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 Sao Joao, April typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec881341411448052211846113161187
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Sao Joao

In Sao Joao in April humidity is 79%. With an average temperature of 14°C (57°F), this humidity feels like a warm, sticky embrace that can make even short strolls feel exhausting, creating a sense of heaviness in the air that might dampen your adventurous spirit while exploring.

April Average Humidity in Sao Joao

This chart illustrates the average monthly humidity levels in Sao Joao, 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 Sao Joao is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%81%78%79%78%71%63%64%71%79%86%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Sao Joao

In Sao Joao 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 Sao Joao.

Maximum UV Index Levels in Sao Joao for April

The chart shows the monthly maximum UV Index (UVI) for Sao Joao 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 Sao Joao typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689111098642
Data source: Sao Joao 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 Sao Joao Compares to Other Months

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

This table compares monthly weather conditions in Sao Joao, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)88 mm (3.5 inches)87%low
February Weather11°C (52°F)134 mm (5.3 inches)81%moderate
March Weather12°C (54°F)141 mm (5.6 inches)78%high
April Weather14°C (57°F)144 mm (5.7 inches)79%very high
May Weather17°C (62°F)80 mm (3.1 inches)78%very high
June Weather18°C (65°F)52 mm (2.0 inches)71%extreme
July Weather20°C (69°F)21 mm (0.8 inches)63%very high
August Weather21°C (69°F)18 mm (0.7 inches)64%very high
September Weather20°C (68°F)46 mm (1.8 inches)71%very high
October Weather16°C (62°F)113 mm (4.5 inches)79%high
November Weather12°C (54°F)161 mm (6.4 inches)86%moderate
December Weather10°C (51°F)187 mm (7.3 inches)87%low

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