SeasonMapHyannis (Cape Cod) weather in March
United States
March in Hyannis: cold, rainy, with clean air — a fair time to visit.
#9 of 12 months in Hyannis · #1297 of 1383 destinations to visit in March · comfort 50/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Hyannis in March
No notes yet. Open Hyannis on the map to add the first one.
Hyannis climate normals — March
| Daytime high | 8°C / 47°F | 🧥 cold |
|---|---|---|
| Nighttime low | 0°C / 32°F | |
| Feels like (high) | 4°C / 39°F | |
| Sea temperature | 5°C / 41°F | 🥶 cold sea |
| Rainfall | 111 mm / 4.4 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 72% | 💧 humid |
| Dew point | -2°C / 29°F | |
| Sunshine | 7.9 h/day | |
| Daylight | 12 h | |
| Wind | 30 km/h / 18 mph | |
| Snowfall | 9.2 cm / 3.6 in | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Hyannis in March
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.
BusySpring break in United States(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Hyannis'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 weatherHyannis's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Hyannis in March
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Winter shutdown
1 Nov – 15 AprOff-season shutdownClosuresMost of the seasonal restaurants and shops close and the ferry drops to the winter timetable, though Hyannis keeps more open year-round than the rest of the Cape because people actually live here. Rates halve.
Nearby, and something's on
Within 300 km of Hyannis — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Hyannis?
Hyannis in March — FAQ
- Is March a good time to visit Hyannis?
- March in Hyannis: cold, rainy, with clean air — a fair time to visit. It ranks #9 of 12 months for Hyannis on SeasonMap's comfort score (50/100).
- What is the weather like in Hyannis in March?
- In March, Hyannis averages a daily high of 8.2°C and a low of -0.1°C, with about 110.7 mm of rain over roughly 9.3 rainy days.
- What is the air quality in Hyannis in March?
- Hyannis has a mean US Air Quality Index of about 41 in March.
- Does it snow in Hyannis in March?
- Hyannis sees roughly 9.2 cm of snowfall in March.
Other months in Hyannis
Compare Hyannis in March
Warmer or cooler than Hyannis in March
Similar destinations in North America — March
Within 300 km: Nantucket's Off-season shutdown around 5 Jan – 10 Apr.