Weather without surprises: Dissay keeps close to the norm for mainland French towns
A typical year brings 705 mm of rain, with July afternoons around 27.2°C and January nights around 2.2°C. Of the 37 towns of 2,500+ in Vienne, it has the warmest July afternoons. Rain peaks in November and eases off in August. Keep the boiler serviced for the months from November to March, which average under 10°C.
These are the figures of Météo-France’s Neuville de Poi station, 13 km west.
A year in Dissay at a glance
Each month’s typical high and low in °C, at the Neuville de Poi station.
What a year in Dissay feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Neuville de Poi.
About 705 mm of rain a year
November is the wettest month and August the driest. About 20 days a year bring 10 mm or more. 10th wettest of 37 towns of 2,500+ in Vienne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Poitiers-Biard
46 frosts and 76 days of 25°C a year
On about 46 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 76 days a year reach 25°C, and 24 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Neuville de Poi: a frost is a night of 0°C or below, a summer day (jour d’été) 25°C or more, a hot day (forte chaleur) 30°C or more.
The Météo-France station at Neuville de Poi
Neuville de Poi is 13 km west of Dissay. Every figure on this page is the station’s, not a measurement in Dissay itself.
| Station (Météo-France number) | Neuville de Poi (86177001) |
| Distance from the town | 13 km west |
| Station altitude | 110 m |
| Town altitude (its center) | 61 m |
| Period | 1991–2020 |
| Sunshine measured at | Poitiers-Biard, 15 km away |
TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.
How Dissay compares
Against the 4,385 towns of 2,500 or more in mainland France, each read from its own matched station. The dots are the other towns of 2,500+ in Vienne.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km. Where a neighbor uses the same station its figures are the same: the differences you’d feel over a few kilometers aren’t in the normals.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Dissay | Neuville de Poi | 27.2°C | 2.2°C | 705 mm |
| Beaumont Saint-Cyr 3.4 km | same station | 27.2°C about the same | 2.2°C about the same | 705 mm |
| Saint-Georges-lès-Baillargeaux 3.9 km | Poitiers-Biard | 26.1°C 1.1°C cooler | 2.1°C about the same | 695 mm |
| Jaunay-Marigny 4 km | same station | 27.2°C about the same | 2.2°C about the same | 705 mm |
| Chasseneuil-du-Poitou 7.2 km | Poitiers-Biard | 26.1°C 1.1°C cooler | 2.1°C about the same | 695 mm |
| Naintré 8.6 km | same station | 27.2°C about the same | 2.2°C about the same | 705 mm |
| Montamisé 9.1 km | Poitiers-Biard | 26.1°C 1.1°C cooler | 2.1°C about the same | 695 mm |
Dissay weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Neuville de Poi station; sunshine at Poitiers-Biard.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.4°C | 2.2°C | 5.3°C | 63 mm | 70 |
| February | 10.0°C | 1.7°C | 5.9°C | 49 mm | 102 |
| March | 14.0°C | 3.5°C | 8.7°C | 47 mm | 158 |
| April | 17.1°C | 5.2°C | 11.2°C | 53 mm | 183 |
| May | 21.1°C | 8.8°C | 14.9°C | 66 mm | 213 |
| June | 24.7°C | 12.1°C | 18.4°C | 58 mm | 233 |
| July | 27.2°C | 13.8°C | 20.5°C | 50 mm | 251 |
| August | 27.3°C | 13.8°C | 20.5°C | 46 mm | 244 |
| September | 23.3°C | 10.6°C | 17.0°C | 54 mm | 200 |
| October | 18.0°C | 8.5°C | 13.3°C | 73 mm | 131 |
| November | 12.3°C | 4.9°C | 8.6°C | 74 mm | 87 |
| December | 8.8°C | 2.6°C | 5.7°C | 72 mm | 71 |
| Year | 17.7°C | 7.3°C | 12.5°C | 705 mm | 1,941 |
Where Dissay’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Neuville de Poi, 13 km away: statistics for 1991–2020.
- Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
- Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
- Sunshine: the nearest station with at least 10 years of sunshine records, Poitiers-Biard, 15 km away.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Vienne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Dissay’s climate
How warm does Dissay get in summer?
August is the warmest month, with average highs of 27.3°C. About 76 days a year reach 25°C, more than 68% of mainland French towns, and about 24 reach 30°C.
How cold does Dissay get in winter?
February nights average 1.7°C. The air drops to 0°C or below on about 46 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Dissay get?
About 705 mm a year, less than 66% of mainland French towns. November is the wettest month (74 mm) and August the driest (46 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Poitiers-Biard (15 km away), averages 1,941 hours of sunshine a year.
Are these figures for Dissay itself?
No: they are the normals of the Météo-France station matched to Dissay, Neuville de Poi, 13 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.
Where do these figures come from?
Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.
Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station NEUVILLE DE POI, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Dissay →
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.