June Weather in Seixal, Portugal

Last updated: August 27, 2025

In June, the average temperature in Seixal, Portugal is a comfortable 20°C (68°F). However, prepare for some variability, as temperatures can dip to a cool 11°C (52°F) or soar to a scorching 40°C (104°F). Expect light rainfall with an average precipitation of 10 mm (0.4 in) spread over 3 days, and enjoy a moderate average humidity of 63%.

June Temperature in Seixal

In June in Seixal, the average temperature is 20°C (68°F). The maximum can reach 40°C (104°F), while the minimum can be as low as 11°C (52°F). Be sure to pack for both warm days and cooler evenings while enjoying your travels!

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 20°C (68°F), with highs reaching up to 40°C (104°F) and lows dropping to around 11°C (52°F).

Data source: Temperature data for Seixal generated using information from the Copernicus Climate Change Service.

June Precipitation in Seixal

In Seixal in June, the precipitation amount is 10 mm (0.4 in) over a period of 3 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 10 mm (0.4 inches) of precipitation spread over approximately 3 days.

Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

June Humidity in Seixal

In Seixal in June humidity is 63%. With an average temperature of 20°C (68°F), this humidity feels like a warm, refreshing embrace, making travel comfortable and inviting, as long as you stay hydrated and take occasional breaks in the shade.

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 63%, offering insight into how humid the weather typically is during this month.

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 reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, which falls under the extreme exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (51°F)	33 mm (1.3 inches)	85%	moderate
February Weather	12°C (55°F)	50 mm (2.0 inches)	75%	moderate
March Weather	14°C (57°F)	68 mm (2.7 inches)	72%	high
April Weather	15°C (59°F)	72 mm (2.8 inches)	70%	very high
May Weather	18°C (65°F)	38 mm (1.5 inches)	70%	very high
June Weather	20°C (68°F)	10 mm (0.4 inches)	63%	extreme
July Weather	22°C (71°F)	5 mm (0.2 inches)	60%	very high
August Weather	22°C (72°F)	3 mm (0.1 inches)	60%	very high
September Weather	21°C (71°F)	24 mm (0.9 inches)	67%	very high
October Weather	19°C (66°F)	42 mm (1.7 inches)	74%	high
November Weather	14°C (58°F)	74 mm (2.9 inches)	83%	moderate
December Weather	12°C (54°F)	55 mm (2.2 inches)	85%	moderate