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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Evening Ledger weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading out in Portimão, as Atlantic fronts can bring quick changes even in summer – knowing what to expect helps you plan beach days or inland trips.
What is the typical weather for Portimão?
Portimão enjoys a Mediterranean climate with hot, dry summers and mild, wet winters. The sea breeze often tempers the heat along the coast, while inland areas can be a few degrees warmer.
- Summer (June–September): daytime highs average 28–32°C, with clear skies and very low rainfall.
- Winter (December–February): highs around 15–18°C, with occasional rain – December and January are the wettest months.
- Spring and autumn offer pleasant conditions for sightseeing, with temperatures between 20–25°C.
- The Algarve’s southerly position means Portimão gets more sunshine than most of the UK, even in winter.
When should I visit Portimão for the best weather?
The ideal months for sunbathing and swimming are June through September, but spring (March–May) and early autumn (October) are comfortable for exploring without the peak crowds. For those considering a longer trip, checking a portimao weather 14 days or portimao weather 21 days outlook helps you decide.
- Hottest months: July and August – expect high UV and occasional heatwaves.
- Mildest winter months: February and March – fewer tourists and average highs of 17–19°C.
- If you’re interested in portimao weather by month, the driest period runs from June to September, while November sees the most rainfall.
- For a portimao weather forecast 30 days, trust long-range models for trends rather than exact day-by-day predictions.
Does it rain much in Portimão in November?
November is one of the wetter months, with around 80mm of rain spread over 8–10 days. However, many days remain partly sunny, and temperatures average 18–20°C – still pleasant for indoor attractions or coastal walks.
What is the sea temperature like in Portimão in February?
Sea temperatures in February drop to around 15–16°C, too cold for most swimmers. If you’re planning a portimao weather february trip, expect mild air but bring a wetsuit if you intend to surf or paddleboard.
Can I expect sunny days in Portimão in December?
Yes – even in December, Portimão averages about 6 hours of sunshine daily. While it’s the cloudiest month, clear spells are common. Check portimao weather december forecasts for specific sunny windows when planning outdoor activities.
For more UK-focused forecasts, visit our UK weather hub or check the 10 Day Weather Forecast UK for comparisons with British conditions. Travellers using a portimao weather january or portimao weather by month guide can also review regional climate data to pack accordingly.