What is the hottest city in Val-d'Oise?

Argenteuil, at 15.8 days, ahead of Franconville (15.8 days).

What is the coolest city in Val-d'Oise?

Pierrelaye, at 9.7 days. 38 cities of Val-d'Oise are measured here.

Where does Argenteuil stand in France?

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

Which cities lead in Val-d'Oise?

Argenteuil (15.8 days), Franconville (15.8 days), Bezons (15.8 days), Cormeilles-en-Parisis (15.8 days), Montigny-lès-Cormeilles (15.8 days). The whole table is on this page.

Le Bon Rang

In Val-d'Oise · Météo-France, fiches climatologiques

The hottest cities in Val-d'Oise

Argenteuil is the hottest city in Val-d'Oise, at 15.8 days, ahead of Franconville (15.8 days) and Bezons (15.8 days). At the other end, Pierrelaye is the coolest city, at 9.7 days.

Could you put Argenteuil, Garges-lès-Gonesse and Goussainville in this ranking's order? Le Bon Rang is that game, every day. Play today's game

The 38 cities of Val-d'Oise ranked on days above 30 °c
Rank	City	Days above 30 °C	Population
1	Argenteuil	15.8 days	106,130
2	Franconville	15.8 days	37,754
3	Bezons	15.8 days	36,434
4	Cormeilles-en-Parisis	15.8 days	27,292
5	Montigny-lès-Cormeilles	15.8 days	22,457
6	Sarcelles	12.6 days	59,173
7	Garges-lès-Gonesse	12.6 days	41,791
8	Villiers-le-Bel	12.6 days	30,053
9	Ermont	12.6 days	29,489
10	Gonesse	12.6 days	27,707
11	Sannois	12.6 days	26,924
12	Eaubonne	12.6 days	26,211
13	Deuil-la-Barre	12.6 days	23,099
14	Montmorency	12.6 days	21,763
15	Saint-Gratien	12.6 days	21,336
16	Soisy-sous-Montmorency	12.6 days	18,008
17	Saint-Leu-la-Forêt	12.6 days	16,138
18	Domont	12.6 days	16,065
19	Montmagny	12.6 days	15,105
20	Saint-Brice-sous-Forêt	12.6 days	15,063
21	Arnouville	12.6 days	15,023
22	Enghien-les-Bains	12.6 days	11,432
23	Goussainville	11.3 days	31,301
24	Louvres	11.3 days	12,560
25	Fosses	11.3 days	10,570
26	Cergy	9.7 days	70,906
27	Pontoise	9.7 days	31,970
28	Herblay-sur-Seine	9.7 days	31,779
29	Taverny	9.7 days	27,593
30	Saint-Ouen-l'Aumône	9.7 days	25,578
31	Éragny-sur-Oise	9.7 days	18,436
32	Osny	9.7 days	17,954
33	Jouy-le-Moutier	9.7 days	17,854
34	Vauréal	9.7 days	16,079
35	Persan	9.7 days	14,359
36	L'Isle-Adam	9.7 days	12,493
37	Beaumont-sur-Oise	9.7 days	10,232
38	Pierrelaye	9.7 days	10,130

Every city of Val-d'Oise →

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 Val-d'Oise

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 Val-d'Oise?: Argenteuil, at 15.8 days, ahead of Franconville (15.8 days).
What is the coolest city in Val-d'Oise?: Pierrelaye, at 9.7 days. 38 cities of Val-d'Oise are measured here.
Where does Argenteuil stand in France?: 404 of the 1,040 French cities measured on days above 30 °c. The national ranking is on its own page.
Which cities lead in Val-d'Oise?: Argenteuil (15.8 days), Franconville (15.8 days), Bezons (15.8 days), Cormeilles-en-Parisis (15.8 days), Montigny-lès-Cormeilles (15.8 days). The whole table is on this page.