Guia Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Guia.

Climate overview of Guia

Temperatures in Guia, Algarve, Portugal, vary greatly throughout the year. July is the hottest month at 29°C (84°F), while January is the coldest at 16°C (61°F).

Annual rainfall is moderate at around 501 mm (20 in), with December being the wettest month. The city also has a distinct dry season from May to September, with warm summers and mild winters. Sunshine peaks in July, when the city sees around 12.7 hours of sunshine per day.

Guia Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Guia - and find the best time to visit.

Monthly Temperature in Guia

The climate in Guia is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a comfortable 29°C (84°F) in July. In January, the coolest month of the year, temperatures drop to a moderate 16°C (61°F).

At night, temperatures range from around 19°C (66°F) in July to 9°C (48°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Guia

Generally, Guia receives mid-range precipitation levels, with 501 mm (20 in) annually. Guia can be quite wet during December, receiving approximately 83 mm (3.3 in) of precipitation over 12 rainy days.

In contrast, during the driest month (July), you will experience much drier conditions, with 1.3 mm (0.1 in) of precipitation spread across a single rainy day. For more details, please visit our Guia Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Guia

Guia can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 12.7 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 5.2 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Portimão, Portugal (21 KM, 13 Miles).

Daily hours of sunshine

Data from: Portimão, Portugal (21 KM, 13 Miles).

Best Time to Visit Guia

For comfortable weather, consider visiting Guia in April, May, June, July, August, September and October. Conditions are usually least favourable in January, February and December.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: April, May, June, July, August, September and October
  • Warmest weather: July and August
  • Most sunshine: July
  • Fewest rainy days: June, July, August and September
  • Seasonal pattern: A distinct dry season from May to September, with warm summers and mild winters

Frequently asked questions about the climate in Guia

What is the best time to visit Guia?

April, May, June, July, August, September and October typically offer the most optimal weather in Guia. In contrast, January, February and December tend to have less optimal conditions. Guia has a distinct dry season from May to September, with warm summers and mild winters.

What temperatures can I expect in Guia?

Daytime highs range from 16°C (61°F) in January to 29°C (84°F) in July. Nighttime lows range from 9°C (48°F) to 19°C (66°F). Temperatures vary considerably through the year.

How much rain does Guia get?

Annual rainfall is around 501 mm (20 in). December is the wettest month with 83 mm (3.3 in), while July is the driest with 1.3 mm (0.1 in).

How sunny is Guia?

Guia receives around 3,023 hours of sunshine per year. July is the sunniest month with 381 hours, while January is the cloudiest with just 156 hours. Overall, Guia enjoys abundant sunshine.

Guia 3-Day Forecast

Guia on the map

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