Mastic Beach climate

Mastic Beach Weather in April

NOAA 1991-2020 normals for Shirley Brookhaven AP, 6.2 km from Mastic Beach

Average highs run from 52°F on April 1 to 63°F on April 30, and lows from 35°F to 44°F. Normal precipitation for the month is 4.06 in over about 12 wet days.

April day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Mastic Beach, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
58°F
Average low
40°F
Precipitation
4.06 in
Snowfall
0.6 in
Record high
93°FApr 17, 2002
Record low
21°FApr 6, 2016
Chance of a freeze
95%
Daylight
12 h 41 min to 13 h 56 min
Cloud cover
63%
Humidity
80%
Dew point
41°F
Wind
9.2 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Apr 152°F35°F65°F 202626°F 200739%4%
Apr 253°F36°F64°F 200624°F 201939%4%
Apr 353°F36°F65°F 201923°F 200839%4%
Apr 453°F36°F76°F 201024°F 201340%3%
Apr 554°F36°F67°F 201026°F 201640%3%
Apr 654°F37°F72°F 201021°F 201640%3%
Apr 754°F37°F82°F 201021°F 200740%3%
Apr 855°F37°F69°F 202126°F 200740%3%
Apr 955°F38°F82°F 201324°F 202640%2%
Apr 1056°F38°F73°F 200826°F 200740%2%
Apr 1156°F38°F68°F 202324°F 200740%2%
Apr 1256°F39°F74°F 201729°F 200540%2%
Apr 1357°F39°F85°F 202327°F 200040%2%
Apr 1457°F39°F84°F 202326°F 200040%2%
Apr 1558°F39°F81°F 202629°F 200540%1%
Apr 1658°F40°F84°F 200229°F 200841%1%
Apr 1758°F40°F93°F 200228°F 200541%1%
Apr 1859°F40°F89°F 200231°F 201441%1%
Apr 1959°F41°F74°F 200228°F 200141%1%
Apr 2060°F41°F82°F 200530°F 200141%1%
Apr 2160°F41°F76°F 200729°F 202641%1%
Apr 2260°F42°F73°F 200732°F 201141%1%
Apr 2361°F42°F71°F 200130°F 202041%1%
Apr 2461°F42°F76°F 200828°F 200241%1%
Apr 2561°F43°F72°F 202531°F 201541%0%
Apr 2662°F43°F87°F 200929°F 202441%0%
Apr 2762°F43°F72°F 200929°F 200241%0%
Apr 2862°F44°F75°F 200932°F 201241%0%
Apr 2963°F44°F83°F 201732°F 200641%0%
Apr 3063°F44°F78°F 200734°F 200841%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Mastic Beach, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

April 1
sunrise 6:35 AM, sunset 7:16 PM
April 30
sunrise 5:51 AM, sunset 7:47 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00054790 (Shirley Brookhaven AP), public domain. Records: NOAA GHCN-Daily, station USW00054790, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.