Portimão weather by month & the best time to visit
Portugal · seaside town · Mediterranean climate
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The best time to visit Portimão is July — its sunniest month (Sunshine Score 98/100), with June and August close behind. Portimão averages about 3,196 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 1 mm of rain in July.
When is the best time to visit Portimão?
For sunshine, the best time to visit Portimão is July, then June and August. The dullest month is January (51/100, 55 mm of rain). The full month-by-month picture is in the table below.
How sunny is Portimão?
Portimão is one of the sunniest places on Earth: about 3,196 hours of sunshine a year. 47 Sunshine Score points separate July (98) from January (51), so the month you pick matters. Portimão is the sunniest of the 19 destinations tracked in Portugal. Rain has a clear season: the wettest stretch, around November, carries about 44% of the annual 584 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 51 | 15° / 59°F | 12° / 54°F | 55 mm | 2 | 16° / 61°F |
| February | 51 | 15° / 59°F | 12° / 54°F | 54 mm | 3 | 17° / 63°F |
| March | 57 | 16° / 61°F | 13° / 55°F | 72 mm | 5 | 15° / 59°F |
| April | 71 | 18° / 64°F | 14° / 57°F | 71 mm | 6 | 17° / 63°F |
| May | 91 | 20° / 68°F | 16° / 61°F | 38 mm | 8 | 16° / 61°F |
| June | 97 | 22° / 72°F | 18° / 64°F | 8 mm | 9 | 18° / 64°F |
| July | 98 | 24° / 75°F | 18° / 64°F | 1 mm | 9 | 17° / 63°F |
| August | 97 | 25° / 77°F | 19° / 66°F | 4 mm | 8 | 17° / 63°F |
| September | 94 | 23° / 73°F | 19° / 66°F | 24 mm | 6 | 17° / 63°F |
| October | 84 | 22° / 72°F | 18° / 64°F | 78 mm | 4 | 18° / 64°F |
| November | 66 | 18° / 64°F | 15° / 59°F | 101 mm | 2 | 19° / 66°F |
| December | 56 | 16° / 61°F | 14° / 57°F | 78 mm | 2 | 18° / 64°F |
Sea temperature in Portimão by month
The sea off Portimão is warmest in November at around 19°C / 66°F, and coolest in March at 15°C / 59°F. It never reaches comfortable swimming temperatures (21°C+). Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
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Portimão: questions and answers
What kind of destination is Portimão?
Portimão is a seaside town in Portugal with a Mediterranean climate — the sea reaches 19°C at its warmest.
How many hours of sunshine does Portimão get a year?
Portimão gets about 3,196 hours of sunshine a year, at its best around July.
When is the best time to visit Portimão?
The sunniest time to visit Portimão is July, when the Sunshine Score peaks at 98/100 (with June and August close behind). Expect daytime highs around 24°C / 75°F.
What is the least sunny month in Portimão?
January is the least sunny month in Portimão, scoring 51/100 with about 55 mm of rain.
Is Portimão the sunniest place in Portugal?
Yes — with about 3,196 hours of sunshine a year, Portimão has the most annual sunshine of the 19 Portugal destinations tracked by Sunshine Atlas.
What is the sea temperature in Portimão?
The sea in Portimão ranges from about 15°C (March) to 19°C (November). Month-by-month sea temperatures are on this page.
How strong is the sun in Portimão?
The typical midday UV index in Portimão peaks around 9 (very high) in June, easing to about 2 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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