Saint Simons Island climate

Saint Simons Island Weather in July

NOAA 1991-2020 normals for Brunswick Malcolm Mckinnon AP, 2.1 km from Saint Simons Island

Average highs run from 90°F on July 1 to 91°F on July 31, and lows from 75°F to 77°F. Normal precipitation for the month is 4.19 in over about 11 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 Saint Simons Island, in °F, with the record for each date.60708090100110151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
91°F
Average low
76°F
Precipitation
4.19 in
Record high
104°FJul 20, 1986
Record low
64°FJul 5, 1947
Chance of a freeze
0%
Days of 90°F or more
17.2
Daylight
14 h 08 min to 13 h 40 min
Cloud cover
57%
Humidity
80%
Dew point
75°F
Wind
8.5 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Jul 190°F75°F101°F 199869°F 194835%
Jul 290°F75°F97°F 197867°F 194735%
Jul 390°F75°F97°F 197067°F 197535%
Jul 491°F76°F99°F 197968°F 194835%
Jul 591°F76°F97°F 197964°F 194735%
Jul 691°F76°F99°F 198064°F 194735%
Jul 791°F76°F99°F 202367°F 194735%
Jul 891°F76°F99°F 202366°F 194735%
Jul 991°F76°F101°F 201068°F 194735%
Jul 1091°F76°F99°F 198070°F 195036%
Jul 1191°F76°F100°F 198069°F 197036%
Jul 1291°F76°F98°F 198168°F 195136%
Jul 1391°F76°F103°F 198069°F 196336%
Jul 1491°F76°F101°F 198167°F 197436%
Jul 1591°F76°F102°F 198167°F 196736%
Jul 1691°F76°F99°F 202366°F 196736%
Jul 1791°F76°F98°F 198369°F 196736%
Jul 1891°F76°F97°F 198369°F 196436%
Jul 1991°F76°F102°F 198669°F 200236%
Jul 2091°F76°F104°F 198669°F 196737%
Jul 2191°F76°F102°F 202369°F 196637%
Jul 2291°F76°F101°F 197769°F 196537%
Jul 2391°F77°F97°F 195267°F 196537%
Jul 2491°F77°F100°F 195270°F 194537%
Jul 2591°F77°F99°F 198369°F 195738%
Jul 2691°F77°F97°F 199371°F 195638%
Jul 2791°F77°F99°F 196870°F 198938%
Jul 2891°F77°F100°F 196870°F 195638%
Jul 2991°F77°F99°F 194969°F 195438%
Jul 3091°F77°F100°F 202369°F 195439%
Jul 3191°F77°F101°F 199968°F 196639%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Saint Simons Island, in percent.0102030401102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (EDT).

July 1
sunrise 6:25 AM, sunset 8:33 PM
July 31
sunrise 6:42 AM, sunset 8:22 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00013878 (Brunswick Malcolm Mckinnon AP), public domain. Records: NOAA GHCN-Daily, station USW00013878, 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.