Weather in Albufeira in September

How September compares

September is the 4th warmest month of the year in Albufeira and ranks 51st of 134 destinations we compare for September - see where else is hot in September. Within Portugal it is 1st of 13 (Portugal in September). Against London's average high of 18.6°C in September, Albufeira is 9.3°C warmer by day and 6.8°C warmer at night.

Daytime and night-time in September

The typical September day in Albufeira peaks at 27.9°C, but that is an average: the warmest 10% of days reach 32.2°C or more. About 79% of days top 25°C and 1 in 4 pass 30°C. Nights average 18.0°C; one night in ten drops to 15.2°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest September day here reached 39.4°C (2016-09-05) and the coldest night 11.5°C (1994-09-23).

Rain in September

Some rain (4-8 rainy days): about 4 days with 1 mm or more, 25 mm in total. Year to year it varies a lot - the wettest September was 2008 with 94 mm, the driest 2017 with 0 mm. Humidity averages 64%.

Sea temperature in September

The sea averages 20.6°C - bracing (18-22°c). Depending on the year it ranges from 19.5°C to 22.1°C. For the warmest sea here, come in August (20.7°C).

Sunshine and daylight

Around 8.3 hours of sunshine a day (estimated from cloud cover), 12.2 hours of daylight: the sun rises about 07:15 and sets about 19:41 local time in mid-September. Average cloud cover is 32%.

Is September a good time to visit Albufeira?

Yes - it is one of the better months: hot days, manageable rain and long sunny days. The best months for Albufeira on our scoring are July, August, June; months averaging 25°C or more: Jun, Jul, Aug, Sep.

Hot days, with some cooler evenings

September still feels like summer in Albufeira: 79% of days reach 25°C, while 28% reach 30°C. That makes it a good fit for travellers who want reliable warmth, but less suitable if you find heat tiring. Plan more active time for the morning and leave room for shade around midday, especially during hotter spells. Evenings are generally mild enough for sitting outside, though a light layer is sensible. The coolest 10% of nights fall to around 15°C or below, so packing only beachwear would leave you short when the temperature drops.

Plenty of sun, but a bracing sea

Expect about 8.3 hours of sunshine within 12.2 hours of daylight, giving you plenty of scope to spend time outdoors without making every outing a midday one. Bring sun protection and use shade rather than judging exposure by how comfortable the air feels. Sea temperatures average 20.6°C, with a year-to-year range of 20°C to 22°C. That is bracing water, not a warm bath, even when the air is hot. September suits travellers happy with refreshing dips better than those who want to linger in comfortably warm water. If swimming is your priority, take that contrast seriously.

Mostly outdoor plans, with a rain backup

Rain need not put you off September, but it should influence how rigidly you plan your days. There are about 4 rainy days during the month, so an entirely dry stay is not something to count on. Equally, this is not a reason to pack as though you were expecting a wet UK break. Light clothes, a layer for cooler evenings and a compact waterproof are a sensible combination. Keep weather-dependent plans flexible and check the forecast during your stay. The overall balance favours outdoor time, provided you are comfortable adjusting plans when rain arrives.