Algarve in autumnSeptember to November weather, sea, lifeguards, winter buses and what closes

Checked on 11 October 2026. Weather figures are long-term averages, not a forecast. Bus and boat times are from the operators’ 2026 timetables, the Olhão ferries from a local site; event dates are the 2026 editions as announced; check them before you travel.

The short answer

Autumn is a good time for the Algarve if you want warm water without the summer crowds. September is still summer: highs of about 26 °C at Faro and almost no rain [1]. October brings the first autumn rain, about 6 rain days, but highs around 23 °C and a sea that is still 21.0 °C off Faro, 20.3 °C off Sagres and 21.0 °C off Tavira [1][26][27][28]. November is mild, about 20 °C by day, and wetter [1]. The official bathing season ends on 30 September on most beaches, except in Albufeira, where the 2026 season runs to 15 October [5]. The clocks go back on 25 October 2026 [6], and from 1 November the winter bus timetable cuts the airport Aerobus to two runs a day [8]. Events include the Santa Iria fair in Faro (15–25 October), São Martinho in Portimão (6–15 November) and MotoGP at Portimão (20–22 November) [21][24][23]. Slide & Splash closes for the season on 31 October; Zoomarine opens on fewer days until 28 November, and the indoor Aquashow park opens every day [13][14][15].

Weather and sea in September, October and November

Faro	September	October	November
Average high (IPMA 1991–2020)	26.4 °C	23.3 °C	19.6 °C
Average low	18.3 °C	15.8 °C	11.9 °C
Rain	21.5 mm	56.0 mm	75.5 mm
Rain days (≥ 1 mm)	1.9	6.0	6.6
Sea off Faro (average)	21.6 °C	21.0 °C	19.2 °C

Air and rain: IPMA normals 1991–2020 for Faro [1]. Sea: NOAA OISST v2.1 offshore surface temperatures, 2001–2020, calculated and checked on 11 October 2026 (Faro 36.875° N, 7.875° W [26]; Sagres 36.875° N, 9.125° W [27]; Tavira 36.875° N, 7.625° W [28]). We average daily values within each month and year, then give each of the 20 annual monthly means equal weight. These 0.25° grid cells are coastal proxies, not measurements at individual beaches or a forecast. The full monthly series is in Algarve weather by month.

What to pack. Summer clothes for September; for October, add a light jacket for the evenings and something for a rainy day; for November, a warm layer and a rain jacket.

September: summer with fewer people

September averages 26.4 °C by day and 1.9 rain days at Faro, and the offshore Faro sea average is 21.6 °C [1][26]. It is the last month with lifeguards on most beaches: in 2026 the official bathing season ended on 30 September on almost all listed beaches outside Albufeira [5]. Which beach suits what: Algarve beaches.

October: warm water, first rain, clocks back

• Lifeguards. Only Albufeira’s beaches, from Galé and Salgados to Olhos de Água and Falésia, have an official bathing season to 15 October 2026; on the other listed Algarve beaches it ended on 30 September (one Castro Marim beach on 31 August) [5]. Outside the official season, do not count on lifeguards; the dates say nothing about whether the sea is safe on a given day.
• Rain returns. Rain rises from 21.5 mm in September to 56.0 mm over 6.0 days in October, while highs stay around 23 °C [1].
• Island boats from Faro. In October 2026 the boat from Faro to Culatra runs only at 08:30 and 14:45, and only if there are passengers; the published Faro to Farol timetable covers 1 to 31 October, with the last boat back from the Farol at 17:30 [10]. The ferries from Olhão to Culatra and the Farol run all year [11]. Which island to pick and how the boats work: Ria Formosa islands.
• The Santa Iria fair in Faro, 15 to 25 October 2026, at Largo de São Francisco. The organiser, Faro’s municipal company Ambifaro, bills it as the largest and oldest fair in the Algarve [21]; it goes back to 1596 and is named after Santa Iria, whose day is 20 October, with stalls, food, crafts and rides for children and adults [12].
• Lagos municipal day, 27 October. Lagos celebrates its municipal day in honour of its patron saint, São Gonçalo de Lagos [25].
• Historic racing at Portimão. The Algarve Classic Festival runs at the Autódromo Internacional do Algarve from 30 October to 1 November 2026 [22].
• Clocks go back on Sunday 25 October 2026. At 01:00 UTC, 02:00 local time, mainland Portugal returns to winter time [6]. From that day it gets dark an hour earlier by the clock, so plan clifftop walks and beach sunsets earlier.
• 5 October is Republic Day, a national holiday [7]. In 2026 it fell on a Monday; in 2027 it is a Tuesday.

November: quiet, mild, winter timetables

November averages 19.6 °C by day, 11.9 °C at night and 75.5 mm of rain on 6.6 days at Faro; the offshore Faro sea average is 19.2 °C [1][26]. The official bathing season is over on every listed Algarve beach [5], so do not count on lifeguards.

• 1 November, All Saints’ Day, is a national holiday [7]. In 2026 it falls on a Sunday.
• São Martinho fair in Portimão, 6 to 15 November 2026, at the Parque de Feiras e Exposições. The council dates it back to 1662; expect roast chestnuts and food stalls, and the Vai e Vem town buses stop nearby [24].
• MotoGP, 20 to 22 November 2026. The MotoGP Grand Prix of Portugal is at the Autódromo Internacional do Algarve near Portimão [23]. If your trip overlaps, we would book a bed nearby early.
• Winter buses from 1 November. The Vamus Aerobus (line 56) from Faro airport to Albufeira, Lagoa, Portimão and Lagos drops from seven runs a day to two, at 11:15 and 18:15, every day; the 20:15 Transrápido (line 57) runs Monday to Friday only, not on holidays; and line 55 to Quarteira and Vilamoura has no buses at weekends or on holidays [8][9]. These times come from the operator’s timetable data published on 25 September 2026; check the Vamus app once the winter timetable starts. Full detail from the airport: Faro airport to Albufeira and Vilamoura, to Portimão and Carvoeiro and to Lagos and Sagres.
• Island boats. We found no Faro to Culatra timetable for November; use the Olhão ferries, which run all year [10][11].
• Walking season. Rota Vicentina gives September to June as the best time for the Fishermen’s Trail on the west coast, and Lagoa council recommends spring and autumn for the Seven Hanging Valleys trail to Praia da Marinha [19][20]. Avoid the clifftops on windy and rainy days.

Without a car in the low season: the Algarve without a car.

Golf in autumn

The Algarve is known for golf, and the Faro figures above explain why autumn suits it: September and October are warm but past the summer heat, and even November has only about six or seven rain days [1]. We have not researched individual courses, green fees or tee times, so check those with the courses directly.

Holidays on 5 October and 1 November

Both are national holidays under the Labour Code, restored in 2016 [7]. Buses run reduced services on holidays: in the Vamus data, for example, the winter 20:15 Transrápido from the airport and line 55 from the airport do not run on holidays [8]. We found no official list of which shops close, so plan supermarket runs the day before. Lagos also has its own municipal day on 27 October [25].

	5 October (Republic Day)	1 November (All Saints’ Day)
2026	Monday (passed)	Sunday
2027	Tuesday	Monday

The Algarve with kids in autumn

• Beaches: in 2026, only Albufeira’s beaches had an official bathing season after 30 September, until 15 October [5]; outside it, do not count on lifeguards. Which beaches the councils describe as sheltered: the Algarve with kids.
• Zoomarine, the marine park at Guia near Albufeira, opens Tuesday to Saturday in October 2026, closed on Sundays and Mondays. In November it is closed from 1 to 4 November, then opens Thursday to Saturday until 28 November [13]. Check the calendar before you drive.
• Slide & Splash, the water park at Estômbar near Lagoa, opens 10:00 to 17:00 in October, closed on Sundays, and its last day of 2026 is 31 October [14]. Aqualand at Alcantarilha has already closed for 2026 [16].
• Aquashow in Quarteira has an indoor water park, open every day from 10:00 to 18:00 since 1 October 2026, with 2- and 3-hour tickets [15]. A rainy-day option once the outdoor parks shut.
• Zoo de Lagos opens 10:00 to 17:00 from October to March [17], and the Centro Ciência Viva science centre in Faro opens Tuesday to Sunday from March to December [18].
• Earlier evenings: after 25 October it gets dark an hour earlier by the clock [6].

Planning an autumn trip

• Best weeks: September for summer weather with lifeguards; the first half of October for warm water with fewer people (lifeguards only in Albufeira until 15 October); November for walking and a quiet base, with more rain [1][5]; if you come around MotoGP weekend (20–22 November), we would book early near Portimão [23].
• Flying in after 1 November: check the winter bus times above, or plan on the train via Faro, a taxi or a hire car.
• Where to stay: where to stay in the Algarve; for a month or longer, Algarve monthly rentals and working remotely in the Algarve.
• What to do: things to do in the Algarve.
• Other seasons: best time to visit the Algarve and Algarve weather by month.

Sources

Numbered references match the source list on this page. Read on 11 October 2026 unless stated.

1. IPMA: Climate normal 1991–2020, Faro (PDF), read 10 October 2026
2. NOAA OISST v2.1: dataset description, accessed 11 October 2026.
3. NOAA OISST v2.1: dataset description, accessed 11 October 2026.
4. NOAA OISST v2.1: dataset description, accessed 11 October 2026.
5. Portaria n.º 204-A/2026/1: bathing seasons 2026 (PDF)
6. Observatório Astronómico de Lisboa: Mudança da hora
7. Diário da República: Lei n.º 8/2016 (PDF)
8. Vamus Algarve timetable data (GTFS, via Transitland)
9. algarvebus.info: 56 Aerobus timetable (PDF)
10. CM Faro: Faro–Farol and Faro–Culatra boats, October 2026 (image)
11. Amo-te Olhão: ferries from Olhão, read 4 October 2026
12. Wikipedia (pt): Faro
13. Zoomarine: Park Calendar 2026
14. Slide & Splash: Opening hours
15. Aquashow: indoor park
16. Aqualand Algarve, read 4 October 2026
17. Zoo de Lagos: Planeia o teu dia, read 2 October 2026
18. Centro Ciência Viva do Algarve, read 4 October 2026
19. Welcome to Lagoa: Seven Hanging Valleys trail, read 4 October 2026
20. Rota Vicentina: Fishermen’s Trail, read 4 October 2026
21. Ambifaro: Feira de Santa Iria 2026
22. Algarve Classic Festival
23. Autódromo Internacional do Algarve: MotoGP Grand Prix of Portugal 2026
24. CM Portimão: Feira de São Martinho
25. CM Lagos: Dia do Município
26. NOAA OISST v2.1 Final: daily offshore SST, faro (36.875 N, 7.875 W), 2001–2020; monthly means calculated from 20 annual monthly means, accessed 11 October 2026.
27. NOAA OISST v2.1 Final: daily offshore SST, sagres (36.875 N, 9.125 W), 2001–2020; monthly means calculated from 20 annual monthly means, accessed 11 October 2026.
28. NOAA OISST v2.1 Final: daily offshore SST, tavira (36.875 N, 7.625 W), 2001–2020; monthly means calculated from 20 annual monthly means, accessed 11 October 2026.