Montauk, Long Island weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Poor
Best time to visit: July – August
What is the weather like in Montauk, Long Island in May?
In May, Montauk, Long Island is cool: daytime highs average 14 °C, and nights cool down to about 11 °C. The sea averages 11.0 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 97 mm in total. It is often windy, with gusts of around 31 km/h. All in all, May is not an ideal month for a holiday in Montauk, Long Island.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 14 h 27 min05:31 – 19:57
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 31 km/haverage daily peakAll months
- Cloud cover
- 61 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %72 %
- Few rainy daysweight 20 %53 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in May
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
- Windproof jacket
Montauk, Long Island in May: quick answers
Is Montauk, Long Island hot in May?
No. In May, Montauk, Long Island is cool: daytime highs average 14 °C and nights drop to about 11 °C.
Can you swim in Montauk, Long Island in May?
Only if you don't mind cold water: in May the sea averages just 11.0 °C. Comfortable swimming is possible from July to September.
Does it rain much in Montauk, Long Island in May?
Rain is frequent, with about 11 rainy days and 97 mm in total.
Montauk, Long Island month by month
The whole year in Montauk, Long IslandAll destinations: USAWhere to go in MaySea temperature in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences