May weather in Westhampton Beach, NY
The average temperature in Westhampton Beach in May is 55.9°F (45.6°F–66.2°F). Average precipitation: 3.31 inches.
May is a spring month in Westhampton Beach, and is warmer than the annual average of 50.2°F. Daily temperatures swing about 20.6°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 14h 17m. For travel, May is a comfortable month to visit.
Avg High
66.2°F
Avg Low
45.6°F
Precipitation
3.31 in
Daylight
14h 17m
May records in Westhampton Beach
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 81.0°F (1957) | 24.3°F (2008) | 1.64 in (1953) |
| May 2 | 82.0°F (2001) | 30.0°F (2005) | 0.50 in (1961) |
| May 3 | 84.0°F (2001) | 30.0°F (1966) | 1.18 in (1954) |
| May 4 | 87.1°F (1965) | 26.1°F (2002) | 0.41 in (2011) |
| May 5 | 79.0°F (2000) | 26.1°F (2003) | 1.26 in (2025) |
| May 6 | 84.0°F (2000) | 28.9°F (1969) | 1.25 in (2025) |
| May 7 | 84.9°F (2000) | 27.1°F (2007) | 0.96 in (2022) |
| May 8 | 82.9°F (2000) | 27.0°F (2001) | 0.48 in (1954) |
| May 9 | 82.0°F (1963) | 28.2°F (2016) | 1.57 in (2025) |
| May 10 | 81.0°F (2001) | 26.2°F (2020) | 0.33 in (2012) |
| May 11 | 84.0°F (2001) | 28.2°F (2010) | 1.62 in (1951) |
| May 12 | 81.0°F (2004) | 30.9°F (1969) | 2.12 in (2006) |
| May 13 | 86.0°F (1956) | 31.1°F (2010) | 1.41 in (1959) |
| May 14 | 73.9°F (2022) | 26.2°F (2020) | 0.45 in (1963) |
| May 15 | 75.0°F (1951) | 30.9°F (1999) | 2.89 in (2024) |
| May 16 | 80.1°F (1960) | 30.0°F (2000) | 0.91 in (1961) |
| May 17 | 82.0°F (2015) | 30.9°F (2003) | 1.00 in (2011) |
| May 18 | 84.9°F (2017) | 25.0°F (2003) | 2.08 in (2010) |
| May 19 | 86.0°F (2017) | 30.0°F (2002) | 2.01 in (1966) |
| May 20 | 80.1°F (1962) | 15.3°F (2025) | 1.42 in (1952) |
| May 21 | 86.0°F (1962) | 28.9°F (2002) | 0.63 in (2003) |
| May 22 | 79.0°F (2021) | 32.0°F (2002) | 1.17 in (2025) |
| May 23 | 89.1°F (2021) | 33.1°F (2006) | 1.27 in (1951) |
| May 24 | 80.1°F (2018) | 35.1°F (2023) | 0.86 in (1968) |
| May 25 | 88.0°F (2007) | 37.0°F (1956) | 2.76 in (1967) |
| May 26 | 89.1°F (2010) | 36.0°F (2013) | 3.39 in (2003) |
| May 27 | 86.0°F (2014) | 33.1°F (2013) | 1.45 in (1961) |
| May 28 | 82.0°F (2012) | 39.0°F (2008) | 1.53 in (1966) |
| May 29 | 91.0°F (1969) | 34.0°F (2008) | 2.53 in (1963) |
| May 30 | 86.0°F (2011) | 33.1°F (2004) | 1.15 in (2021) |
| May 31 | 93.0°F (2022) | 34.0°F (1967) | 0.52 in (1952) |