Climate Insights for Amagansett

The climate in Amagansett is temperate. The average annual temperature is 12°C and approximately 1178mm of precipitation falls per year. Amagansett receives a notable amount of rainfall throughout the year, including during its driest month. Amagansett is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, December, when temperatures can drop to 1°C. Snowfall occurs from January to December, with around 114cm accumulating over the season.

Temperatures in Amagansett vary considerably across the year, with a 24°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 25°C with a mean of 24°C. February is the coolest month, with minimum temperatures around 1°C and an average of 3°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between May and June, with a 6°C shift in average temperatures.

Amagansett is a moderately rainy area, receiving approximately 1178mm of precipitation annually, which averages out to around 98mm per month. The wettest month is February, averaging 158mm of rainfall. October and January also tend to see above-average precipitation. The driest month is June, with just 34mm. That's 124mm less than February, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 114cm accumulating over the season. January typically sees the most snow at around 47cm.

Amagansett is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8km/h in winter, 6km/h in spring, 5km/h in summer, 7km/h in autumn.

It is currently summer in Amagansett, which began on June 21, 2026. Amagansett is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 25°C, while the coldest stretch bottoms out in February near 1°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

The best time to visit Amagansett is during June and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 40mm per month. By contrast, February can be quite cold with temperatures dropping to 1°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Amagansett based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.