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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Morning Times weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Portimão weather today, based on the live forecast above, is mild and settled for the Algarve coast. Expect sea breezes and clear spells typical of this region, with conditions varying noticeably between summer heat and winter chill.
What is the typical climate pattern for Portimão?
Portimão has a Mediterranean climate with hot, dry summers and mild, wet winters. The sea keeps coastal temperatures moderate year-round, but inland areas can be several degrees warmer in July and August. The sunniest months are June through September, while November to February bring the highest rainfall and cooler nights.
How do conditions change through the year?
Winter months from December to February see daytime highs around 15-17°C, with January often the coolest. Spring (March to May) warms steadily into the low 20s. Summer heat peaks in July and August, frequently above 30°C. Autumn stays pleasant into October, then cools quickly in November.
What is the weather like in Portimão in November?
November sees daytime highs around 18-20°C, with overnight lows near 12°C. It is one of the wettest months, with roughly 8-10 rainy days. Sea temperatures are still swimmable at about 18°C, but wind can pick up.
How accurate is a 14- or 30-day forecast for Portimão?
Three-day forecasts are reliable for temperature and rain. A 14-day outlook gives a trend but can shift. Any 30-day prediction for Portimão is low-confidence and useful only as a broad pattern guide, not for planning specific days.
How does Portimão weather compare to the UK?
Portimão is significantly warmer and sunnier than the UK year-round. Even in winter, it is roughly 5-8°C milder than southern England. Summer heat in the Algarve is far more intense, with reliable sunshine and very low humidity compared to a typical UK July.
Sources
For other UK destinations, see our national weather hub or check the 10 day weather forecast UK. Regional guides include Bristol Weather and Liverpool Weather.