First pick
Parc de loisirs de Cernay
Park or garden
1.6 ha0.7 km of path
10 minto walk all 0.7 km of path
1.1 km southfrom the center
Directionsto a point inside
Photo: elisabeth · CC BY-SA 4.00%woodland
Outdoors in Ermont · protected areas, woods and footpaths
Ermont has more footpaths per km² than 9 in 10 French towns
29 km of footpaths cross Ermont (6.9 km per km²). No protected area reaches Ermont; the nearest, Sites de Seine-Saint-Denis (Natura 2000), is 5 km from the town center. Ermont has almost no mapped woodland. France has no Outdoors Grade yet: these are the figures, each beside the compared towns’ median.
Protected areas
0%
of the commune’s land
Nearest: Sites de Seine-Saint-Denis, 5 km
Woodland
0%
of the land, mapped on OpenStreetMap
Compared town: 13%
Footpaths
29 km
6.9 km per km²
Compared town: 1.7 km per km²
Hiking routes
0 km
waymarked, GR and others
Compared town: 0.3 km per km²
Parks & woods
11
named, in or within 400 m of the commune
First: Parc de loisirs de Cernay
Throughout this page, the Val-d'Oise median and the France median are the median of compared communes (those with an overall grade), each figure its own median.
What kind of place
What kind of outdoors place is Ermont?
Read from the data: what stands out first, good and less good.
A place of footpaths6.9 km per km² of mapped footpath, against 1.7 km per km² for the median compared town.Protected land nearbySites de Seine-Saint-Denis (Natura 2000) is 5 km from the town center.Little mapped woodland0% of the land, against 13% for the median compared town.
What sets Ermont apart: its footpaths, then protected land close by. It is shorter on woodland.
Against French towns
How Ermont compares with French towns
Each figure against the 3,798 compared French towns (communes with an overall grade): the marked bar is the town’s, the line the median. Described, not graded.
Protected areas0%Share of the land in a national park, regional nature park, nature reserve or Natura 2000 site
22out of 100
Woodland0%Share of the land mapped as forest or woods on OpenStreetMap
1out of 100
Footpaths6.9 km per km²Km of mapped footpath and track open on foot, per km² of the commune
96out of 100
Hiking routes0 km per km²Km of waymarked hiking routes (GR and others), per km² of the commune
12out of 100
Percentiles among compared French towns; ties count half.
Towns its size
Ermont has the 12th most footpaths per km² of 41 towns its size
The 40 compared French towns nearest in population (28,046 to 31,148 residents), by km of footpath per km². Hover for each one’s protected land and woods; click for its page.
From Cachan (11.5 km per km²) to Villemomble (1.4 km per km²).
Every town in the comparison
| Town | Paths (km/km²) | Woodland | Protected | Coast | |
|---|---|---|---|---|---|
| 1 | Cachan Val-de-Marne | 11.5 | 1.2% | 0% | 155 km |
| 2 | Lyon 1er Rhône | 11.3 | 1.1% | 0% | 253 km |
| 3 | Guyancourt Yvelines | 8.9 | 22% | 0% | 145 km |
| 4 | Le Plessis-Robinson Hauts-de-Seine | 8.6 | 13% | 0% | 153 km |
| 5 | Lyon 2e Rhône | 8.3 | 0% | 0% | 251 km |
| 6 | Vandœuvre-lès-Nancy Meurthe-et-Moselle | 8.1 | 18% | 0% | 367 km |
| 7 | Saint-Cloud Hauts-de-Seine | 7.8 | 27% | 0% | 145 km |
| 8 | Clichy-sous-Bois Seine-Saint-Denis | 7.6 | 29% | 22% | 153 km |
| 9 | Tournefeuille Haute-Garonne | 7.5 | 9.4% | 0% | 153 km |
| 10 | Vanves Hauts-de-Seine | 7.3 | 3.4% | 0% | 150 km |
| 11 | Villiers-le-Bel Val-d'Oise | 7 | 5.1% | 0% | 138 km |
| 12 | Ermont Val-d'Oise | 6.9 | 0% | 0% | 133 km |
| 13 | Savigny-le-Temple Seine-et-Marne | 6.5 | 15% | 0% | 183 km |
| 14 | Le Chesnay-Rocquencourt Yvelines | 6.3 | 21% | 0% | 144 km |
| 15 | Charenton-le-Pont Val-de-Marne | 5.9 | 0.7% | 0% | 155 km |
| 16 | Fresnes Val-de-Marne | 5.7 | 3.6% | 0% | 158 km |
| 17 | Malakoff Hauts-de-Seine | 5.6 | 0% | 0% | 151 km |
| 18 | Viry-Châtillon Essonne | 5.4 | 4.4% | 0% | 168 km |
| 19 | Liévin Pas-de-Calais | 4.7 | 5.2% | 0% | 74 km |
| 20 | Bois-Colombes Hauts-de-Seine | 4.6 | 0% | 0% | 141 km |
| 21 | Draveil Essonne | 4.6 | 47% | 0% | 168 km |
| 22 | Saint-Sébastien-sur-Loire Loire-Atlantique | 4.5 | 9.9% | 23% | 41 km |
| 23 | Chatou Yvelines | 4.5 | 0.3% | 0% | 138 km |
| 24 | Décines-Charpieu Rhône | 4.2 | 6.3% | 8.4% | 255 km |
| 25 | Orvault Loire-Atlantique | 3.9 | 17% | 0% | 37 km |
| 26 | Sotteville-lès-Rouen Seine-Maritime | 3.9 | 1.4% | 0% | 53 km |
| 27 | Menton Alpes-Maritimes | 3.5 | 32% | 20% | On it |
| 28 | Saint-Étienne-du-Rouvray Seine-Maritime | 3.4 | 28% | 0.3% | 53 km |
| 29 | Dieppe Seine-Maritime | 3.3 | 2.9% | 2.7% | On it |
| 30 | Agde Hérault | 3.2 | 4.4% | 22% | On it |
| 31 | Périgueux Dordogne | 3.1 | 10% | 0% | 105 km |
| 32 | Montfermeil Seine-Saint-Denis | 2.9 | 8.2% | 5.5% | 155 km |
| 33 | Cambrai Nord | 2.8 | 4.5% | 0% | 111 km |
| 34 | Soissons Aisne | 2.7 | 7.5% | 0% | 148 km |
| 35 | Bourgoin-Jallieu Isère | 2.7 | 13% | 0% | 240 km |
| 36 | Maubeuge Nord | 2.6 | 2.2% | 0.1% | 129 km |
| 37 | La Garenne-Colombes Hauts-de-Seine | 2.2 | 0% | 0% | 141 km |
| 38 | Châtellerault Vienne | 1.6 | 4.3% | 0% | 140 km |
| 39 | Orange Vaucluse | 1.5 | 8% | 2.3% | 76 km |
| 40 | Vallauris Alpes-Maritimes | 1.5 | 16% | 0% | On it |
| 41 | Villemomble Seine-Saint-Denis | 1.4 | 0.7% | 0% | 154 km |
The map
Parks, woods, footpaths & countryside
Tap a number to zoom to a park or wood. Tap a layer to hide it. The dashed line is the commune’s boundary.
Green: parks, gardens and woods mapped on OpenStreetMap, named or not.© OpenStreetMap contributors · INPN / PatriNat · IGN
Places to walk
Parks and woods to walk in, in and around Ermont
Named parks, gardens and woods in the commune or within 400 m, the biggest and best-pathed first: Parc de loisirs de Cernay leads, at 1.6 ha. Directions go to a point inside.
Plaine de Jeux
Park or garden
1.1 ha0.6 km of path
10 minto walk all 0.6 km of path
1 km south-westfrom the center
Directionsto a point inside
Parc de la Mairie
Park or garden
1.1 ha0.5 km of path
Centralin the middle of Ermont
Directionsto a point inside
Parc de l'Audience
Park or garden
0.8 ha0.4 km of path
Centralin the middle of Ermont
Directionsto a point inside
Square Jean Moulin
Park or garden
0.5 ha0.4 km of path
Centralin the middle of Ermont
Directionsto a point inside
Parc Beaulieu
Park or garden
0.8 ha0.1 km of path
Centralin the middle of Ermont
Allée Pierre Bouchard
Directionsto a point inside
Square de la Commanderie
Park or garden
0.5 ha0.2 km of path
1.2 km south-westfrom the center
Directionsto a point inside
Parc de la Place Jacquet
Park or garden
0.2 ha0.3 km of path
0.8 km south-eastfrom the center
Directionsto a point inside
All 11 named parks, gardens and woods
Parc de loisirs de CernayPark or garden · 1.6 ha · 0.7 km of path
DirectionsPlaine de JeuxPark or garden · 1.1 ha · 0.6 km of path
DirectionsParc de la MairiePark or garden · 1.1 ha · 0.5 km of path
DirectionsParc de l'AudiencePark or garden · 0.8 ha · 0.4 km of path
DirectionsSquare Jean MoulinPark or garden · 0.5 ha · 0.4 km of path
DirectionsParc BeaulieuPark or garden · 0.8 ha · 0.1 km of path
DirectionsSquare de la CommanderiePark or garden · 0.5 ha · 0.2 km of path
DirectionsParc de la Place JacquetPark or garden · 0.2 ha · 0.3 km of path
DirectionsParc Simone VeilPark or garden · 0.3 ha · 0.2 km of path
DirectionsParc zenPark or garden · 0.3 ha
DirectionsSquare du Souvenir FrançaisPark or garden · 0.2 ha
DirectionsSource: © OpenStreetMap contributors (ODbL): named parks, gardens and woods; sizes are the whole site.
Protected areas
Sites de Seine-Saint-Denis is the nearest protected area, 5 km away
The protected areas reaching the commune, and the nearest: national parks, regional nature parks, nature reserves and Natura 2000 sites.
Natura 2000 site
Sites de Seine-Saint-Denis
5 km from the town center
Share of the commune’s land
Any protected area0%
Designations overlap (a regional park can hold a Natura 2000 site), so the rows don’t add up; the first counts each piece of land once.
Source: INPN / PatriNat, protected areas July 2026, Natura 2000 December 2024; shares of IGN’s commune boundary.
Footpaths and woods
Footpaths and woods in Ermont
Paths, bridleways, steps and tracks open on foot, and waymarked hiking routes, mapped on OpenStreetMap inside the commune; woods are mapped forest and woodland, private woods included.
Footpaths
29 km
6.9 km per km²
Hiking routes
0 km
waymarked: 0 km per km²
Woodland
0%
about 0 km² of mapped woods
Km per km² of the commune · mapped on OpenStreetMap
ErmontVal-d'Oise medianFrance median
Footpaths6.9
Hiking routes0
048 km per km²
Share of the land · mapped woods and forest
ErmontVal-d'Oise medianFrance median
Woodland0%
0%50%100%
That is more than in 96% of compared French towns for footpaths per km², and for woodland less than in 99% of compared French towns. Hiking routes often follow paths and lanes already counted, so the two lengths overlap: don’t add them. 99% of Ermont’s residents live within 800 m of a mapped park or wood, close to the typical town.
2 named hiking routes within 2 km
Other named walk
Un petit coin de campagne au milieu des villes1.1 km
Sentier des Lisières0.4 km
Source: © OpenStreetMap contributors (ODbL), extracts of October 25, 2026 (Geofabrik).
When to get out
The best walking months in Ermont: April to September
Météo-France’s 1991–2020 normals at Le Bourget, 13 km away, and the daylight at the town’s latitude. Outlined months have long days, highs of 15 to 30 °C and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 8.7 | 10.1 | 11.7 | 13.6 | 15.3 | 16.2 | 15.8 | 14.4 | 12.5 | 10.7 | 9.1 | 8.2 |
| High (°C) | 8 | 9 | 13 | 16 | 20 | 23 | 26 | 25 | 22 | 17 | 11 | 8 |
| Rain (mm) | 47 | 41 | 44 | 43 | 61 | 54 | 56 | 53 | 45 | 57 | 54 | 63 |
February is the driest month (41 mm) and July the warmest (highs of 26 °C). 63 mm of rain falls in December, the wettest month. Frost comes on about 37 nights a year. The climate in Ermont →
Neighbors
Next to Ermont
The nearest towns of 2,500 or more, colored by the share of their land in protected areas.
EaubonneLe Plessis-BouchardSannoisFranconvilleSaint-PrixMargencyErmont
Under 1%1–10 %10–25 %25–50 %50 %+
| Town | Protected | Woodland | Paths (km/km²) |
|---|---|---|---|
| Ermont | 0% | 0% | 6.9 |
| Eaubonne 26,211 · 1.6 km | 0% | 1.9% | 5 |
| Le Plessis-Bouchard 8,518 · 1.8 km | 0% | 1.2% | 5.8 |
| Sannois 26,924 · 1.8 km | 0% | 17% | 6 |
| Franconville 37,754 · 2 km | 0% | 27% | 8.2 |
| Saint-Prix 7,612 · 2.1 km | 0.5% | 64% | 8.4 |
| Margency 3,012 · 2.6 km | 0% | 0.9% | 7.4 |
Franconville and Saint-Prix are more wooded.
How to read these numbers
What this data can and can’t tell you
- Protected areas. National-park cores, national parks’ outer areas, regional nature parks, nature reserves and Natura 2000 sites, from INPN. A national park’s core is strictly protected; its outer area and a regional park are charters between communes, not bans. Designations overlap, so the total counts each piece of land once.
- Woodland. Forest and woods as OpenStreetMap maps them, private woods included: woods nobody has mapped are missing, and a mapped wood isn’t necessarily open to walkers.
- Footpaths and hiking routes. Footpaths, bridleways, steps and tracks open on foot, then waymarked hiking routes (GR and others) measured apart. A route often follows a path or lane already counted: the two overlap. Paths nobody has mapped are missing.
- Green space nearby. The share of residents (INSEE’s 200 m grid) within 800 m, as the crow flies, of a mapped park, garden or wood edge. It measures nearness, not a way in. Guadeloupe and French Guiana have no grid: their pages say whether the town center is within 800 m.
- The coast. The straight-line distance from the town center to OpenStreetMap’s coastline, which follows the tide line into estuaries. A commune is on the coast when the coastline crosses its boundary.
- No grade yet. U.S. and UK towns have an Outdoors Grade; French towns don’t yet. Each figure is set beside the median of compared communes (those with an overall grade) in the département and in France, each figure its own median.
Questions about the outdoors in Ermont
Is Ermont in a national or regional nature park?
No. The nearest protected area is Sites de Seine-Saint-Denis, 5 km from the town center.
Are there good walks in Ermont?
OpenStreetMap maps 29 km of footpaths and tracks open on foot in the commune, 6.9 km per km² (the median compared town: 1.7 km per km²).
How much of Ermont is woodland?
0% of the commune is mapped woodland, private woods included; the median compared French town has 13%.
Is Ermont near the sea?
No: the coast is 133 km from the town center, as the crow flies.
When is the best time for walking in Ermont?
April to September: long days, mild highs and little rain, from Météo-France’s 1991–2020 normals at the nearest suitable station.
Why is there no Outdoors Grade for French towns?
TownRatings grades the outdoors in the U.S. and the UK; the French figures are new and not graded yet. This page sets each one beside the median compared French town instead.
Sources: INPN / PatriNat (protected areas 2026, Natura 2000 2024) · © OpenStreetMap contributors, ODbL (paths, hiking routes, woods, coast, gardens) · INSEE, Filosofi 2021 200 m grid (residents) · IGN Admin Express (boundaries) · Météo-France normals 1991–2020 · Medians and percentiles: TownRatings, over compared French towns, updated November 4, 2026. Under the Licence Ouverte / Open Licence 2.0 (Etalab).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.