SeasonMapSaint-Pierre (Miquelon) weather in September
Saint Pierre and Miquelon
September in Saint-Pierre: cool, rainy, with clean air — a good time to visit.
#3 of 12 months in Saint-Pierre · #972 of 1383 destinations to visit in September · comfort 69/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Saint-Pierre in September
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Saint-Pierre climate normals — September
| Daytime high | 16°C / 61°F | 🙂 cool |
|---|---|---|
| Nighttime low | 14°C / 58°F | |
| Sea temperature | 16°C / 61°F | 🧊 bracing |
| Rainfall | 114 mm / 4.5 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 13°C / 56°F | |
| Sunshine | 8.3 h/day | |
| Daylight | 12.5 h | |
| Wind | 38 km/h / 23 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Saint-Pierre in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyschool holidays in 2 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Saint-Pierre's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherSaint-Pierre's weather peaks July–September, best around August.
Best weatherFair weatherToughest weather
What's on in Saint-Pierre in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Opening
Summer season opens
1 May – 30 SepBook earlyThe Miquelon ferry, the seasonal flights from the Îles de la Madeleine and the direct link to Paris all run from May to September, and the guides to Langlade and the dune go with them. Out of season it is Saint John's or nothing. Source ↗
Where is Saint-Pierre?
Saint-Pierre in September — FAQ
- Is September a good time to visit Saint-Pierre?
- September in Saint-Pierre: cool, rainy, with clean air — a good time to visit. It ranks #3 of 12 months for Saint-Pierre on SeasonMap's comfort score (69/100).
- What is the weather like in Saint-Pierre in September?
- In September, Saint-Pierre averages a daily high of 15.9°C and a low of 14.2°C, with about 114.2 mm of rain over roughly 12.4 rainy days.
- What is the air quality in Saint-Pierre in September?
- Saint-Pierre has a mean US Air Quality Index of about 44 in September.