Portugal

Portugal Weather

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Climate Overview

Portugal’s weather is a proper crowd-pleaser, serving up mild winters and reliably warm, dry summers that stretch out along the Atlantic. The beaches are a magnet all year, with sunshine hours rising fast from spring and peaking over summer. Even in winter, you won’t need to dig out the ski jacket - just a light jumper if you’re feeling cautious.

The Algarve in the south is your go-to for sunseekers, often a couple of degrees warmer and drier than the north. Don’t forget the islands: Madeira and the Azores have their own softer, subtropical vibe, especially good for those who want a dose of green with their sea views.

Seasons Overview

Spring (March - May): Spring is when Portugal starts to show off - air temperatures climb from 19°C in March to 24°C by May, with rainfall dropping each month and sunshine ramping up. The coast is noticeably brighter, and the sea slowly warms, making it ideal for early jollies before the summer rush.

Summer (June - August): Summer brings the heat and a whopper helping of sunshine. Expect 27-29°C days with barely a drop of rain and up to 12 hours of sun. The sea is at its warmest (20-21°C), so you can swim, surf, or just float about to your heart’s content.

Autumn (September - November): Autumn is a pleasant surprise - September stays hot at 27°C, with the sea still inviting at 20°C. Rainfall ticks up in October and November, but there’s still enough sun (8-9 hours a day) to keep the beachy vibes alive before winter moves in.

Winter (December - February): Winter in Portugal is mild by any standard, with daytime temperatures hovering at 16-17°C and the sea matching the air. Rainfall is higher, especially December, but you’ll still catch around 5-6 hours of sunshine most days - enough for a brisk, bright walk on the beach.

Best Time To Visit

For a classic beach holiday, June to September is the sweet spot - peak temperatures hit 27-29°C, the sea is genuinely warm, and rain is almost non-existent. If you prefer things a bit quieter (and cheaper), late spring (May) is a top-tier choice, offering 24°C days and 10 hours of sunshine. The Algarve is your best bet for reliable sun, while Madeira’s subtropical climate means you can chase milder, green-tinged getaways even in the depths of winter. Portugal rarely leaves you stuck indoors - unless you want a siesta, of course.

Temp

22°C

Average high

Rain

40mm

Per month

Sun

9hrs

Per day

Humidity

70%

Average

Annual weather averages in PortugalAvg. high (°C)Rainfall (mm)
Avg. high and rainfall by month
January16°C70mm
February17°C50mm
March19°C40mm
April21°C35mm
May24°C20mm
June27°C5mm
July29°C1mm
August29°C2mm
September27°C15mm
October23°C65mm
November19°C80mm
December17°C95mm

Average weather in Portugal

  • Jan16°CAvg. Rain: 70mm
  • Feb17°CAvg. Rain: 50mm
  • Mar19°CAvg. Rain: 40mm
  • Apr21°CAvg. Rain: 35mm
  • May24°CAvg. Rain: 20mm
  • Jun27°CAvg. Rain: 5mm
  • Jul29°CAvg. Rain: 1mm
  • Aug29°CAvg. Rain: 2mm
  • Sept27°CAvg. Rain: 15mm
  • Oct23°CAvg. Rain: 65mm
  • Nov19°CAvg. Rain: 80mm
  • Dec17°CAvg. Rain: 95mm

FAQs

When is the hottest time to visit Portugal?

Portugal’s hottest months are July and August, with average highs of 29°C and up to 12 hours of sunshine daily. Perfect for those who like things scorchio.

Does it rain much in Portugal?

Portugal is mostly dry through the summer, with just 1-2mm of rain in July and August. Rain picks up in autumn and peaks in December at 95mm, but it rarely sticks around long enough to ruin your holibobs.

Is the sea warm enough to swim in Portugal?

From June to September, the sea temperature sits at a comfortable 19-21°C, so swimming is firmly on the cards for most beachgoers.