Where is warm in September? The warmest towns in Portugal

In September, the warmest towns in Portugal are Mértola, Minas de São Domingos and Neves, with average highs of 29.6°C, 29.0°C and 28.9°C. Across the 100 warmest towns, highs run from 27.1°C to 29.6°C.

Daytime high at least

Any 18°C 20°C 22°C 25°C

Sea warm enough to swim (20°C+)

759 places match, the 100 warmest listed

MértolaAlentejo, PortugalPhoto: Christian Marques, CC BY 2.0

High: 29.6°C
Low: 17.7°C
Rain days: 4
Sea: –
Crowds: Medium

Minas de São DomingosAlentejo, PortugalPhoto: Paulo Juntas, CC BY-SA 2.5

High: 29.0°C
Low: 17.2°C
Rain days: 4
Sea: –
Crowds: Medium

NevesAlentejo, Portugal

High: 28.9°C
Low: 16.7°C
Rain days: 4
Sea: –
Crowds: Medium

MouraAlentejo, PortugalPhoto: GualdimG, CC BY-SA 4.0

High: 28.8°C
Low: 17.2°C
Rain days: 4
Sea: –
Crowds: Medium

SerpaAlentejo, PortugalPhoto: Vitor Oliveira from Torres Vedras, PORTUGAL, CC BY-SA 2.0

High: 28.8°C
Low: 16.7°C
Rain days: 4
Sea: –
Crowds: Medium

SalvadaAlentejo, Portugal

High: 28.7°C
Low: 16.5°C
Rain days: 4
Sea: –
Crowds: Medium

Cabeça GordaAlentejo, Portugal

High: 28.7°C
Low: 16.5°C
Rain days: 4
Sea: –
Crowds: Medium

Reguengos de MonsarazAlentejo, PortugalPhoto: Vitor Oliveira from Torres Vedras, PORTUGAL, CC BY-SA 2.0

High: 28.6°C
Low: 16.9°C
Rain days: 4
Sea: –
Crowds: Medium

Castro MarimAlgarve, PortugalPhoto: Vitor Oliveira from Torres Vedras, PORTUGAL, CC BY-SA 2.0

High: 28.6°C
Low: 18.7°C
Rain days: 3
Sea: 21.5°C
Crowds: Medium

Ponte de SôrAlentejo, PortugalPhoto: Vitor Oliveira from Torres Vedras, PORTUGAL, CC BY-SA 2.0

High: 28.6°C
Low: 15.9°C
Rain days: 5
Sea: –
Crowds: Medium

Vila Real de Santo AntónioAlgarve, PortugalPhoto: Vitor Oliveira from Torres Vedras, PORTUGAL, CC BY-SA 2.0

High: 28.6°C
Low: 18.7°C
Rain days: 3
Sea: 21.5°C
Crowds: Medium

Ferreira do AlentejoAlentejo, PortugalPhoto: Vitor Oliveira from Torres Vedras, PORTUGAL, CC BY-SA 2.0

High: 28.5°C
Low: 16.3°C
Rain days: 4
Sea: –
Crowds: Medium

VidigueiraAlentejo, Portugal

High: 28.5°C
Low: 16.8°C
Rain days: 5
Sea: –
Crowds: Medium

AlturaAlgarve, Portugal

High: 28.5°C
Low: 19.0°C
Rain days: 3
Sea: 21.5°C
Crowds: Medium

Monte GordoAlgarve, PortugalPhoto: Lucidedits, CC BY-SA 4.0

High: 28.5°C
Low: 18.9°C
Rain days: 3
Sea: 21.5°C
Crowds: Medium

Aldeia NovaAlentejo, Portugal

High: 28.5°C
Low: 16.8°C
Rain days: 4
Sea: –
Crowds: Medium

São Bartolomeu de MessinesAlgarve, PortugalPhoto: muffinn from Worcester, UK, CC BY 2.0

High: 28.5°C
Low: 16.9°C
Rain days: 4
Sea: –
Crowds: Medium

Manta RotaAlgarve, PortugalPhoto: Manuel Correia, Public domain

High: 28.4°C
Low: 18.9°C
Rain days: 3
Sea: 21.5°C
Crowds: Medium

CorucheOeste e Vale do Tejo, PortugalPhoto: Pedro from Maia (Porto), Portugal, CC BY 2.0

High: 28.4°C
Low: 16.0°C
Rain days: 5
Sea: –
Crowds: Medium

Penedo GordoAlentejo, Portugal

High: 28.4°C
Low: 16.3°C
Rain days: 4
Sea: –
Crowds: Medium

Places 21 to 100

Rank	Town	Region	High	Low	Rain days
21	Cuba	Alentejo	28.4°C	16.9°C	5
22	São Marcos da Serra	Algarve	28.4°C	16.8°C	4
23	Vila Nova de Cacela	Algarve	28.3°C	18.8°C	3
24	Cabanas de Tavira	Algarve	28.3°C	19.0°C	4
25	Pego	Oeste e Vale do Tejo	28.3°C	16.2°C	5
26	Beringel	Alentejo	28.3°C	16.5°C	4
27	Ermidas	Alentejo	28.2°C	16.3°C	4
28	Alferrarede	Oeste e Vale do Tejo	28.2°C	15.9°C	5
29	Conceição	Algarve	28.1°C	18.9°C	4
30	Azinhaga (Golegã)	Oeste e Vale do Tejo	28.1°C	16.1°C	5
31	Montargil	Alentejo	28.1°C	15.2°C	5
32	Campo Maior	Alentejo	28.1°C	16.7°C	4
33	Vila Velha de Ródão	Centro	28.1°C	16.1°C	5
34	Albufeira	Algarve	28.1°C	17.9°C	4
35	Aljustrel	Alentejo	28.1°C	15.9°C	4
36	Évora	Alentejo	28.0°C	16.5°C	5
37	Redondo	Alentejo	28.0°C	16.3°C	5
38	Pinheiro Grande	Oeste e Vale do Tejo	28.0°C	15.7°C	5
39	Avis	Alentejo	28.0°C	15.9°C	5
40	Elvas	Alentejo	28.0°C	16.2°C	4
41	Alcantarilha	Algarve	28.0°C	17.8°C	4
42	Paderne	Algarve	28.0°C	17.7°C	4
43	Arronches	Alentejo	28.0°C	16.5°C	5
44	Montalvo	Oeste e Vale do Tejo	28.0°C	15.6°C	5
45	Almeirim	Oeste e Vale do Tejo	28.0°C	16.2°C	5
46	Marinhais	Oeste e Vale do Tejo	27.9°C	16.1°C	5
47	Algoz	Algarve	27.9°C	17.7°C	4
48	Pêra	Algarve	27.9°C	17.7°C	4
49	Monforte	Alentejo	27.9°C	16.3°C	5
50	Bemfica	Oeste e Vale do Tejo	27.9°C	16.1°C	5
51	Vila Nova da Barquinha	Oeste e Vale do Tejo	27.9°C	15.8°C	5
52	Beja	Alentejo	27.9°C	15.8°C	4
53	Tramagal	Oeste e Vale do Tejo	27.9°C	15.5°C	5
54	Guia	Algarve	27.9°C	17.7°C	4
55	Praia do Ribatejo	Oeste e Vale do Tejo	27.9°C	15.7°C	5
56	Almodôvar	Alentejo	27.8°C	15.9°C	4
57	Alvito	Alentejo	27.8°C	16.5°C	5
58	Montemor-o-Novo	Alentejo	27.8°C	15.9°C	5
59	Ferreiras	Algarve	27.8°C	17.6°C	4
60	São Miguel de Rio Torto	Oeste e Vale do Tejo	27.8°C	15.2°C	5
61	Vendas Novas	Alentejo	27.8°C	15.4°C	5
62	Castro Verde	Alentejo	27.8°C	15.8°C	4
63	Fronteira	Alentejo	27.8°C	16.1°C	5
64	Golegã	Oeste e Vale do Tejo	27.8°C	16.0°C	5
65	Abrantes	Oeste e Vale do Tejo	27.8°C	15.5°C	5
66	Benavente	Oeste e Vale do Tejo	27.8°C	16.5°C	5
67	Tunes	Algarve	27.8°C	17.6°C	4
68	Salvaterra de Magos	Oeste e Vale do Tejo	27.8°C	16.5°C	5
69	Montalvinho	Oeste e Vale do Tejo	27.8°C	15.4°C	5
70	Armação de Pêra	Algarve	27.7°C	17.9°C	4
71	Riachos	Oeste e Vale do Tejo	27.7°C	15.9°C	5
72	São Vicente do Paul	Oeste e Vale do Tejo	27.7°C	16.2°C	5
73	Alpiarça	Oeste e Vale do Tejo	27.6°C	16.2°C	5
74	Silves	Algarve	27.6°C	17.7°C	4
75	Cano	Alentejo	27.6°C	15.9°C	5
76	Santa Margarida da Coutada	Oeste e Vale do Tejo	27.6°C	15.2°C	5
77	Fazendas de Almeirim	Oeste e Vale do Tejo	27.6°C	15.8°C	5
78	Entroncamento	Oeste e Vale do Tejo	27.6°C	16.0°C	5
79	Vale de Santarém	Oeste e Vale do Tejo	27.6°C	16.4°C	5
80	Tomar	Oeste e Vale do Tejo	27.5°C	16.0°C	5
81	Alter do Chão	Alentejo	27.5°C	15.9°C	5
82	Vale de Figueira	Oeste e Vale do Tejo	27.4°C	15.9°C	5
83	Atalaia	Alentejo	27.4°C	15.7°C	6
84	Sardoal	Oeste e Vale do Tejo	27.4°C	15.1°C	5
85	Vila Viçosa	Alentejo	27.3°C	15.7°C	5
86	Nisa	Alentejo	27.3°C	15.9°C	5
87	Borba	Alentejo	27.3°C	15.6°C	5
88	Torres Novas	Oeste e Vale do Tejo	27.3°C	15.7°C	5
89	Ferragudo	Algarve	27.3°C	17.8°C	4
90	Parchal	Algarve	27.3°C	17.8°C	4
91	Porches	Algarve	27.3°C	17.4°C	4
92	Portimão	Algarve	27.3°C	17.8°C	4
93	Gavião	Alentejo	27.3°C	15.5°C	6
94	Pontével	Oeste e Vale do Tejo	27.2°C	16.3°C	5
95	Meia Via	Oeste e Vale do Tejo	27.2°C	15.7°C	5
96	Samora Correia	Oeste e Vale do Tejo	27.2°C	16.8°C	5
97	Odemira	Alentejo	27.2°C	17.0°C	4
98	Madalena (Tomar)	Oeste e Vale do Tejo	27.2°C	15.6°C	5
99	Estremoz	Alentejo	27.1°C	15.3°C	5
100	Estômbar	Algarve	27.1°C	17.7°C	4

Questions about warm places in September

Where in Portugal is warmest in September?

Mértola (Alentejo) has the highest average September high, 29.6°C, followed by Minas de São Domingos (29.0°C) and Neves (28.9°C).

Which regions have the warmest towns in September?

Of the 100 warmest towns in September, 41 in Alentejo, 33 in Oeste e Vale do Tejo and 25 in Algarve.

Which of the warmest towns is driest in September?

Among the 100 warmest towns, Castro Marim has the fewest rainy days in September: 3 days with at least 1 mm of rain, and an average high of 28.6°C.

How cool are September nights in the warmest towns?

Average September lows in the 100 warmest towns range from 15.1°C to 19.0°C.

Climate normals 1991-2020 from ERA5-Land, adjusted to each town's elevation. Rain days count days with at least 1 mm. Crowd levels are for each town's region as a whole (Eurostat, nights booked through online platforms). Methodology