Sherwood Island Weather

Sherwood Island has a mild coastal climate. NOAA's 1991–2020 normals for the nearest major weather station, Bridgeport's Sikorsky airport about 10 miles up the shore, give an average July high of 83.4°F and an average January low of 24.4°F, with 3 to 4 inches of precipitation in every month. Beach weather runs from late May to early September; for today's conditions, use the National Weather Service forecast for Westport.

Month by Month

NOAA normals, 1991–2020, Bridgeport Sikorsky Memorial Airport (°F; precipitation and snow in inches):

• January: high 38.4, low 24.4; precipitation 3.18; snow 8.5
• February: high 40.5, low 25.7; precipitation 3.12; snow 10.7
• March: high 47.4, low 32.3; precipitation 4.09; snow 7.0
• April: high 58.3, low 41.7; precipitation 4.16; snow 0.9
• May: high 68.4, low 51.7; precipitation 3.58
• June: high 77.7, low 61.5; precipitation 3.77
• July: high 83.4, low 67.9; precipitation 3.32
• August: high 81.9, low 67.0; precipitation 3.98
• September: high 75.4, low 59.8; precipitation 3.96
• October: high 64.4, low 48.3; precipitation 3.84
• November: high 53.6, low 38.4; precipitation 3.11; snow 0.9
• December: high 43.8, low 30.2; precipitation 3.98; snow 5.5

Best Time to Visit

• July and August: the warmest air and water, and the busiest beach. Expect afternoon sea breezes that keep the shore a little cooler than inland Fairfield County.
• June and September: highs in the upper 70s, fewer people, and the weekly water quality report still running until Labor Day.
• October: highs in the mid-60s, migrating birds, dogs allowed again from October 1, and the whole beach open to fishing.
• Winter: the park stays open 8 a.m. to sunset. February averages about 10.7 inches of snow at Bridgeport; the shore often gets less than inland towns, and a cold wind off the Sound is the bigger factor.

Live Forecast

Use the National Weather Service forecast for Westport, CT (forecast.weather.gov) for hourly temperature, wind and rain chances, plus any marine, heat or coastal flood advisories. On beach days, check wind direction: a south wind brings chop to the beach and spray over the jetties.

Wind and Kites

The open lawns and beaches are known for kite flying, and an onshore breeze is common on summer afternoons. Bring a light kite for summer and a stronger one for fall.

Pair the Weather With

Tides · Water quality · Hours · Plan your visit

Planning Around Heat and Crowds

The hottest stretch, late July into August, is also the park's busiest, and the lots can fill on weekends. On a heat-advisory day, arrive when the gates open at 8 a.m., use the shade of the west-side picnic grove, and bring more water than you think: the pavilion snack bar is closed for 2026. Thunderstorms build on hot afternoons; leave the beach at the first thunder. After heavy rain, check the water quality report before swimming.