Brightwaters climate

Brightwaters Weather in July

NOAA 1991-2020 normals for Islip Li Macarthur AP, 16.1 km from Brightwaters

Average highs run from 81°F on July 1 to 83°F on July 31, and lows from 66°F to 68°F. Normal precipitation for the month is 3.26 in over about 9 wet days.

July day by day

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

Normal daily high and low temperature at Brightwaters, in °F, with the record for each date.5060708090100110151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
83°F
Average low
67°F
Precipitation
3.26 in
Record high
102°FJul 3, 2026
Record low
53°FJul 3, 2001
Chance of a freeze
0%
Days of 90°F or more
4.1
Daylight
15 h 02 min to 14 h 20 min
Cloud cover
53%
Humidity
79%
Dew point
67°F
Wind
9.4 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
Jul 181°F66°F95°F 201859°F 201131%0%
Jul 282°F66°F101°F 202656°F 200130%0%
Jul 382°F66°F102°F 202653°F 200130%0%
Jul 482°F66°F98°F 201059°F 202130%0%
Jul 582°F66°F99°F 201061°F 200930%0%
Jul 682°F67°F102°F 201060°F 200930%0%
Jul 782°F67°F98°F 201056°F 200130%0%
Jul 883°F67°F92°F 202456°F 201830%0%
Jul 983°F67°F88°F 201159°F 200930%0%
Jul 1083°F67°F93°F 200555°F 200930%0%
Jul 1183°F67°F92°F 200557°F 200930%0%
Jul 1283°F67°F94°F 201158°F 200229%0%
Jul 1383°F68°F91°F 201758°F 200129%0%
Jul 1483°F68°F90°F 201962°F 200129%0%
Jul 1583°F68°F96°F 202657°F 200929%0%
Jul 1683°F68°F94°F 201364°F 200029%0%
Jul 1783°F68°F94°F 200663°F 201529%0%
Jul 1883°F68°F97°F 201362°F 201429%0%
Jul 1983°F68°F94°F 201360°F 200029%0%
Jul 2083°F68°F97°F 202060°F 200029%0%
Jul 2183°F68°F96°F 201959°F 201229%0%
Jul 2283°F68°F102°F 201160°F 201230%0%
Jul 2383°F68°F99°F 201161°F 200030%0%
Jul 2483°F68°F97°F 201059°F 200730%0%
Jul 2583°F68°F94°F 201060°F 200230%0%
Jul 2683°F68°F93°F 201659°F 200230%0%
Jul 2783°F68°F96°F 202057°F 200130%0%
Jul 2883°F68°F97°F 202058°F 200130%0%
Jul 2983°F68°F97°F 200262°F 201430%0%
Jul 3083°F68°F94°F 200259°F 201730%0%
Jul 3183°F68°F93°F 200257°F 200130%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Brightwaters, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

July 1
sunrise 5:26 AM, sunset 8:28 PM
July 31
sunrise 5:49 AM, sunset 8:09 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00004781 (Islip Li Macarthur AP), public domain. Records: NOAA GHCN-Daily, station USW00054787, 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.