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April Weather in Seixal, Portugal

Last updated: August 27, 2025

In April, the average temperature in Seixal, Portugal hovers around 15°C (60°F), with minimums dipping to 11°C (51°F) and maximums reaching up to 23°C (74°F). Expect around 56 mm (2.2 in) of precipitation over 12 days, accompanied by an average humidity of 78%. Perfect for cozy days indoors or exploring the local scenery!

April Temperature in Seixal

In April in Seixal, the average temperature is 15°C (60°F). Maximum temperatures can reach 23°C (74°F), while the minimum can drop to as low as 11°C (51°F). This mild weather makes it a great time for travelers to explore the attractions and enjoy outdoor activities comfortably.

April Weather in Seixal: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Seixal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seixal, April typically has an average temperature of 15°C (60°F), with highs reaching up to 23°C (74°F) and lows dropping to around 11°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec585858596265687169676360
Data source: Temperature data for Seixal 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 Seixal

In Seixal in April, the precipitation amount is 56 mm (2.2 in) spread over 12 days.

April Precipitation Trends in Seixal

The chart displays monthly precipitation patterns in Seixal, 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 Seixal, April typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec3860525623368818576758
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Seixal

In Seixal in April, humidity is 78%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp embrace that can make outdoor activities a bit uncomfortable, highlighting the importance of staying hydrated and taking breaks in the shade while exploring.

April Average Humidity in Seixal

This chart illustrates the average monthly humidity levels in Seixal, 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 Seixal is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%75%78%78%77%80%83%83%81%80%75%75%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Seixal

In Seixal in April, 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 Seixal.

Maximum UV Index Levels in Seixal for April

The chart shows the monthly maximum UV Index (UVI) for Seixal 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 Seixal typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112111110864
Data source: Seixal 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 Seixal Compares to Other Months

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

This table compares monthly weather conditions in Seixal, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)38 mm (1.5 inches)75%moderate
February Weather14°C (58°F)60 mm (2.4 inches)75%high
March Weather14°C (58°F)52 mm (2.1 inches)78%very high
April Weather15°C (60°F)56 mm (2.2 inches)78%very high
May Weather17°C (62°F)23 mm (0.9 inches)77%extreme
June Weather18°C (65°F)36 mm (1.4 inches)80%extreme
July Weather20°C (68°F)7 mm (0.3 inches)83%extreme
August Weather21°C (71°F)8 mm (0.3 inches)83%extreme
September Weather21°C (70°F)18 mm (0.7 inches)81%very high
October Weather20°C (67°F)57 mm (2.3 inches)80%very high
November Weather17°C (63°F)67 mm (2.6 inches)75%high
December Weather16°C (61°F)58 mm (2.3 inches)75%moderate

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