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June Weather in Seixal, Portugal

Last updated: August 27, 2025

In June, the average temperature in Seixal, Portugal hovers around 18°C (65°F). Expect a comfortable range, with minimums dipping to 13°C (56°F) and maximums reaching 26°C (79°F). Be prepared for 36 mm (1.4 in) of precipitation spread across 7 days, accompanied by a notable average humidity of 80%.

June Temperature in Seixal

In June in Seixal, the average temperature is 18°C (65°F). The maximum can reach 26°C (79°F), and the minimum can be as low as 13°C (56°F). This mild climate makes Seixal an ideal destination for travelers looking to enjoy pleasant outdoor activities and sightseeing.

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

The chart illustrates June 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, June typically has an average temperature of 18°C (65°F), with highs reaching up to 26°C (79°F) and lows dropping to around 13°C (56°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.

June Precipitation in Seixal

In Seixal in June, the total precipitation amount is 36 mm (1.4 in) over a span of 7 days.

June Precipitation Trends in Seixal

The chart displays monthly precipitation patterns in Seixal, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Seixal, June typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec3860525623368818576758
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Seixal

In Seixal in June, humidity is 80%. With an average temperature of 18°C (65°F), this humidity feels like wandering through a warm, damp blanket, making every step slightly heavy and resulting in a constant sheen of sweat, which can be both refreshing and exhausting for travelers.

June Average Humidity in Seixal

This chart illustrates the average monthly humidity levels in Seixal, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Seixal is approximately 80%, 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 June generated using information from the Copernicus Climate Change Service.

June UV Index in Seixal

In Seixal in June, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Seixal.

Maximum UV Index Levels in Seixal for June

The chart shows the monthly maximum UV Index (UVI) for Seixal in June, 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 June, the maximum UV index in Seixal typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112111110864
Data source: Seixal June 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 June 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 June’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 June’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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