What is the hottest city in Île-de-France?

Montereau-Fault-Yonne, at 17.0 days, ahead of Nemours (17.0 days).

What is the coolest city in Île-de-France?

Voisins-le-Bretonneux, at 9.0 days. 266 cities of Île-de-France are measured here.

Where does Montereau-Fault-Yonne stand in France?

380 of the 1,040 French cities measured on days above 30 °c. The national ranking is on its own page.

Which cities lead in Île-de-France?

Montereau-Fault-Yonne (17.0 days), Nemours (17.0 days), Moret-Loing-et-Orvanne (17.0 days), Boulogne-Billancourt (15.8 days), Argenteuil (15.8 days). The whole table is on this page.

Le Bon Rang

In Île-de-France · Météo-France, fiches climatologiques

The hottest cities in Île-de-France

Montereau-Fault-Yonne is the hottest city in Île-de-France, at 17.0 days, ahead of Nemours (17.0 days) and Moret-Loing-et-Orvanne (17.0 days). At the other end, Voisins-le-Bretonneux is the coolest city, at 9.0 days.

Could you put Meaux, Rueil-Malmaison and Saint-Maur-des-Fossés in this ranking's order? Le Bon Rang is that game, every day. Play today's game

The top 100 of the 266 cities of Île-de-France on days above 30 °c
Rank	City	Days above 30 °C	Population
1	77 Montereau-Fault-Yonne	17.0 days	22,279
2	77 Nemours	17.0 days	12,889
3	77 Moret-Loing-et-Orvanne	17.0 days	12,810
4	92 Boulogne-Billancourt	15.8 days	119,019
5	95 Argenteuil	15.8 days	106,130
6	92 Nanterre	15.8 days	97,783
7	92 Asnières-sur-Seine	15.8 days	93,941
8	92 Colombes	15.8 days	91,053
9	92 Courbevoie	15.8 days	82,902
10	92 Rueil-Malmaison	15.8 days	82,874
11	92 Levallois-Perret	15.8 days	68,092
12	92 Issy-les-Moulineaux	15.8 days	67,669
13	92 Clichy	15.8 days	64,410
14	92 Neuilly-sur-Seine	15.8 days	59,538
15	92 Clamart	15.8 days	58,576
16	78 Sartrouville	15.8 days	52,763
17	92 Gennevilliers	15.8 days	50,979
18	92 Suresnes	15.8 days	48,956
19	92 Meudon	15.8 days	46,334
20	78 Saint-Germain-en-Laye	15.8 days	45,931
21	92 Puteaux	15.8 days	44,002
22	95 Franconville	15.8 days	37,754
23	95 Bezons	15.8 days	36,434
24	78 Houilles	15.8 days	33,983
25	78 Chatou	15.8 days	30,598
26	92 La Garenne-Colombes	15.8 days	30,197
27	92 Saint-Cloud	15.8 days	29,855
28	92 Bois-Colombes	15.8 days	28,909
29	95 Cormeilles-en-Parisis	15.8 days	27,292
30	78 Maisons-Laffitte	15.8 days	23,093
31	95 Montigny-lès-Cormeilles	15.8 days	22,457
32	92 Sèvres	15.8 days	22,303
33	92 Chaville	15.8 days	20,594
34	78 La Celle-Saint-Cloud	15.8 days	20,460
35	92 Garches	15.8 days	17,743
36	78 Marly-le-Roi	15.8 days	16,756
37	78 Le Pecq	15.8 days	16,059
38	78 Le Vésinet	15.8 days	15,554
39	78 Carrières-sur-Seine	15.8 days	14,791
40	78 Montesson	15.8 days	14,549
41	92 Ville-d'Avray	15.8 days	11,089
42	78 Croissy-sur-Seine	15.8 days	11,013
43	91 Étampes	15.4 days	26,857
44	91 Évry-Courcouronnes	14.4 days	66,919
45	91 Corbeil-Essonnes	14.4 days	54,471
46	91 Sainte-Geneviève-des-Bois	14.4 days	35,438
47	91 Ris-Orangis	14.4 days	31,189
48	91 Brétigny-sur-Orge	14.4 days	26,658
49	91 Saint-Michel-sur-Orge	14.4 days	21,776
50	91 Morsang-sur-Orge	14.4 days	21,667
51	91 Mennecy	14.4 days	16,433
52	91 Fleury-Mérogis	14.4 days	13,721
53	91 Arpajon	14.4 days	11,698
54	91 Saint-Germain-lès-Arpajon	14.4 days	11,623
55	91 Dourdan	14.4 days	11,415
56	91 Bondoufle	14.4 days	10,767
57	77 Meaux	14.2 days	56,905
58	77 La Ferté-sous-Jouarre	14.2 days	10,254
59	75 Paris	14.0 days	2,103,778
60	93 Montreuil	14.0 days	111,934
61	94 Vitry-sur-Seine	14.0 days	93,963
62	94 Ivry-sur-Seine	14.0 days	65,064
63	94 Villejuif	14.0 days	60,183
64	94 Maisons-Alfort	14.0 days	56,799
65	94 Fontenay-sous-Bois	14.0 days	53,757
66	94 Vincennes	14.0 days	48,193
67	92 Montrouge	14.0 days	46,324
68	94 Alfortville	14.0 days	45,531
69	92 Bagneux	14.0 days	44,572
70	93 Bagnolet	14.0 days	43,086
71	92 Châtillon	14.0 days	36,705
72	92 Châtenay-Malabry	14.0 days	35,825
73	94 Nogent-sur-Marne	14.0 days	32,455
74	94 L'Haÿ-les-Roses	14.0 days	31,188
75	94 Cachan	14.0 days	31,103
76	92 Malakoff	14.0 days	30,557
77	92 Le Plessis-Robinson	14.0 days	28,848
78	94 Charenton-le-Pont	14.0 days	28,830
79	92 Vanves	14.0 days	28,622
80	94 Le Kremlin-Bicêtre	14.0 days	24,110
81	92 Fontenay-aux-Roses	14.0 days	24,070
82	93 Les Lilas	14.0 days	23,843
83	94 Arcueil	14.0 days	22,200
84	94 Saint-Mandé	14.0 days	21,071
85	92 Bourg-la-Reine	14.0 days	21,019
86	92 Sceaux	14.0 days	20,884
87	94 Joinville-le-Pont	14.0 days	20,525
88	94 Gentilly	14.0 days	19,963
89	94 Chevilly-Larue	14.0 days	19,826
90	93 Le Pré-Saint-Gervais	14.0 days	16,993
91	91 Verrières-le-Buisson	14.0 days	15,057
92	94 Saint-Maurice	14.0 days	14,506
93	94 Créteil	13.0 days	93,397
94	94 Saint-Maur-des-Fossés	13.0 days	76,572
95	92 Antony	13.0 days	64,263
96	91 Massy	13.0 days	51,729
97	94 Choisy-le-Roi	13.0 days	45,946
98	91 Savigny-sur-Orge	13.0 days	37,601
99	91 Athis-Mons	13.0 days	36,613
100	94 Villeneuve-Saint-Georges	13.0 days	36,221

Every city of Île-de-France →

The same ranking for the whole of France : The hottest cities in France · The coolest cities in France in summer

The hottest cities in, elsewhere

The other rankings of Île-de-France

Scope, method and sources

Scope: France, metropolitan and overseas, Corsica and the DROM included. This dataset holds every commune of 10,000 inhabitants or more, plus smaller communes famous enough to be household names, 1,131 in all. It is not the full list of 35,000 French communes, so a village can sit outside a ranking whose extreme it would otherwise hold. This particular ranking is metropolitan only: the distance to the coast is measured against the coastlines of the Hexagon and Corsica, which would put an overseas port thousands of kilometres from a sea it sits on, so no value is published for overseas France rather than a wrong one.

Method and sources: populations are the INSEE legal populations, boundaries and coordinates come from the IGN commune registry, both served by geo.api.gouv.fr. Density is the population divided by the commune's area; distances are measured as the crow flies from the commune's centre. Data read on August 28, 2026.

4 questions about this ranking

What is the hottest city in Île-de-France?: Montereau-Fault-Yonne, at 17.0 days, ahead of Nemours (17.0 days).
What is the coolest city in Île-de-France?: Voisins-le-Bretonneux, at 9.0 days. 266 cities of Île-de-France are measured here.
Where does Montereau-Fault-Yonne stand in France?: 380 of the 1,040 French cities measured on days above 30 °c. The national ranking is on its own page.
Which cities lead in Île-de-France?: Montereau-Fault-Yonne (17.0 days), Nemours (17.0 days), Moret-Loing-et-Orvanne (17.0 days), Boulogne-Billancourt (15.8 days), Argenteuil (15.8 days). The whole table is on this page.