Best time to visit Cape Cod National Seashore
May, June and September are the best balance at Cape Cod National Seashore: mild and dry for the park (average highs 62° to 72°F), with crowds from moderate to busy. August is busiest, with about 670,000 visitors. December is the quietest, with highs near 44°F.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
Month by month
- Station
- Chatham Muni AP, MA USW00094624
- Lat / lon
- 41.69, -69.99
- Elevation
- 68 ft
- From park center
- 25.5 mi
- Normals
- 1991–2020
- Visits
- 2023–2025
| Field | Jan | Feb | Mar | Apr | Maybest | Junbest | Jul | Aug | Sepbest | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High, °F | 39° | 40° | 44° | 52° | 62° | 72° | 79° | 78° | 71° | 61° | 52° | 44° | 58° |
| Low, °F | 26° | 26° | 31° | 39° | 48° | 57° | 64° | 64° | 58° | 47° | 39° | 31° | 44° |
| Precipitation, in | 3.8 | 3.6 | 4.4 | 4.0 | 3.3 | 3.0 | 2.8 | 3.0 | 3.6 | 4.2 | 4.5 | 5.0 | 45.2 |
| Snow, in | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Daylight, h:mm | 9:26 | 10:30 | 11:48 | 13:17 | 14:32 | 15:13 | 14:57 | 13:52 | 12:26 | 11:00 | 9:45 | 9:08 | |
| Visitors, thousands | 115 | 129 | 153 | 239 | 332 | 448 | 587 | 670 | 481 | 307 | 178 | 133 | 3,771 |
| Crowds | Quiet | Quiet | Quiet | Moderate | Moderate | Busy | Very busy | Very busy | Busy | Moderate | Quiet | Quiet | |
| Weather | Cold | Cold | Cool | Cool | Mild | Mild | Mild | Mild | Mild | Mild, wet | Cool | Cool |
| Month | High °F | Low °F | Precip., in | Snow, in | Daylight | Visitors | Crowds | Weather |
|---|---|---|---|---|---|---|---|---|
| January | 39° | 26° | 3.8 | – | 9:26 | 115,000 | Quiet | Cold |
| February | 40° | 26° | 3.6 | – | 10:30 | 129,000 | Quiet | Cold |
| March | 44° | 31° | 4.4 | – | 11:48 | 153,000 | Quiet | Cool |
| April | 52° | 39° | 4.0 | – | 13:17 | 239,000 | Moderate | Cool |
| Maybest | 62° | 48° | 3.3 | – | 14:32 | 332,000 | Moderate | Mild |
| Junebest | 72° | 57° | 3.0 | – | 15:13 | 448,000 | Busy | Mild |
| July | 79° | 64° | 2.8 | – | 14:57 | 587,000 | Very busy | Mild |
| August | 78° | 64° | 3.0 | – | 13:52 | 670,000 | Very busy | Mild |
| Septemberbest | 71° | 58° | 3.6 | – | 12:26 | 481,000 | Busy | Mild |
| October | 61° | 47° | 4.2 | – | 11:00 | 307,000 | Moderate | Mild, wet |
| November | 52° | 39° | 4.5 | – | 9:45 | 178,000 | Quiet | Cool |
| December | 44° | 31° | 5.0 | – | 9:08 | 133,000 | Quiet | Cool |
| Year | 58° | 44° | 45.2 | – | 3,771,000 | |||
Year: average high and low, total precipitation and snowfall, total visitors. T = trace (under 0.05 in). – = not measured at this station. Updated .
- Hottest July, average high 79°F
- Coldest nights January, average low 26°F
- Source NOAA National Centers for Environmental Information; National Park Service
- Visitors a year about 3,771,000 (2023–2025 average)
- State Massachusetts
Closures, reservations and alerts: Cape Cod National Seashore on nps.gov
Nearby
- Salem Maritime National Historical ParkBest: May, Aug and Sep · Massachusetts
- Boston National Historical ParkBest: May and Sep · Massachusetts
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- Longfellow House-Washington's Headquarters National Historic SiteBest: May and Sep · Massachusetts