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May Weather in Grandola, Portugal

Last updated: August 27, 2025

In Grandola, Portugal, the average temperature in May reaches a comfortable 19°C (66°F). However, expect a range in temperatures, with a minimum of 7°C (44°F) and a sweltering maximum of 36°C (97°F). During this period, the area receives about 30 mm (1.2 in) of precipitation over 5 days, accompanied by an average humidity of 70%. Stay prepared for both warmth and occasional rain!

May Temperature in Grandola

In May in Grandola, the average temperature is 19°C (66°F). Maximum temperatures can reach up to 36°C (97°F), while minimum temperatures can dip as low as 7°C (44°F). Overall, visitors can expect mild to warm weather, making it an enjoyable time to explore the area.

May Weather in Grandola: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Grandola, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grandola, May typically has an average temperature of 19°C (66°F), with highs reaching up to 36°C (97°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec505457596669727471665754
Data source: Temperature data for Grandola 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.

May Precipitation in Grandola

In Grandola in May, the precipitation amount is 30 mm (1.2 in) over the course of 5 days.

May Precipitation Trends in Grandola

The chart displays monthly precipitation patterns in Grandola, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Grandola, May typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec305281733193218425649
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Grandola

In Grandola in May humidity is 70%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket enveloping you, making travel a bit sticky and prompting frequent breaks for water as you explore the sights.

May Average Humidity in Grandola

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

May UV Index in Grandola

In Grandola in May, 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 Grandola.

Maximum UV Index Levels in Grandola for May

The chart shows the monthly maximum UV Index (UVI) for Grandola in May, 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 May, the maximum UV index in Grandola typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111099643
Data source: Grandola May 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 May Weather in Grandola Compares to Other Months

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

This table compares monthly weather conditions in Grandola, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)30 mm (1.2 inches)85%moderate
February Weather12°C (55°F)52 mm (2.0 inches)75%moderate
March Weather14°C (57°F)81 mm (3.2 inches)72%high
April Weather15°C (60°F)73 mm (2.9 inches)70%very high
May Weather19°C (66°F)30 mm (1.2 inches)70%very high
June Weather20°C (69°F)9 mm (0.4 inches)63%extreme
July Weather22°C (72°F)3 mm (0.1 inches)60%very high
August Weather23°C (74°F)2 mm (0.1 inches)60%very high
September Weather22°C (71°F)18 mm (0.7 inches)67%very high
October Weather19°C (66°F)42 mm (1.6 inches)74%high
November Weather14°C (58°F)56 mm (2.2 inches)83%moderate
December Weather12°C (54°F)49 mm (1.9 inches)85%moderate

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