SeasonMapCharlottetown weather in September
Canada
September in Charlottetown: nice, rainy, with clean air — an excellent time to visit.
#4 of 12 months in Charlottetown · #593 of 1383 destinations to visit in September · comfort 82/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Charlottetown in September
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Charlottetown climate normals — September
| Daytime high | 21°C / 71°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 52°F | |
| Feels like (high) | 20°C / 68°F | |
| Sea temperature | 19°C / 67°F | 🌊 fresh |
| Rainfall | 94 mm / 3.7 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 12°C / 54°F | |
| Sunshine | 9 h/day | |
| Daylight | 12.5 h | |
| Wind | 25 km/h / 16 mph | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Charlottetown 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.
Peak crowdsCruise ship calls, Summer break in Canada(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Charlottetown'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).
Fair weatherCharlottetown's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in Charlottetown in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Charlottetown Festival
25 Jun – 26 SepMajor festivalBook earlyThe Confederation Centre's summer theatre season, running from late June into late September, built around the Anne of Green Gables musical that has played here since the 1960s. Matinees sell out before the evening shows do. Source ↗
- Season
Cruise ship calls
1 Sep – 31 Oct · usuallyCruise seasonCrowdedThe port takes most of its calls in September and October, when the Canada and New England itineraries come through — around three dozen ships in two months into a city of forty thousand. Victoria Row is quiet again by five. Source ↗
- Festival
Fall Flavours
24 Sep – 10 OctHarvestBook earlyThree weeks of shellfish suppers, kitchen parties and chef dinners staged across the island, with Charlottetown the base most people book. The signature events go early; the small ones in the fishing villages are the better ticket. Source ↗
Nearby, and something's on
Within 300 km of Charlottetown — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Charlottetown?
Charlottetown in September — FAQ
- Is September a good time to visit Charlottetown?
- September in Charlottetown: nice, rainy, with clean air — an excellent time to visit. It ranks #4 of 12 months for Charlottetown on SeasonMap's comfort score (82/100).
- What is the weather like in Charlottetown in September?
- In September, Charlottetown averages a daily high of 21.4°C and a low of 10.9°C, with about 94.3 mm of rain over roughly 8.6 rainy days.
- What is the air quality in Charlottetown in September?
- Charlottetown has a mean US Air Quality Index of about 37 in September.
Other months in Charlottetown
Compare Charlottetown in September
Warmer or cooler than Charlottetown in September
Similar destinations in North America — September
Within 300 km: Halifax's Cruise season on 1 Sep – 31 Oct.