Skip to content
VSWeather

Port St. John, FL weather and climate

Brevard County, FL · population 24,617 · about 33 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Port St. John's own coordinates.

The year at a glance

Sunny days
218
clear or partly cloudy, per year
Precipitation
38 in
per year
Wet days
138
rain or snow per year
Snowfall
0 in
per year
Hot days
64
above 90 °F
Freezing nights
2
at or below 32 °F
Humidity
75%
average relative
Average temperature
72 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
6080JanMarMayJulSepNovDaily high, Jan: 69 °FDaily high, Feb: 72 °FDaily high, Mar: 75 °FDaily high, Apr: 80 °FDaily high, May: 84 °FDaily high, Jun: 88 °FDaily high, Jul: 90 °FDaily high, Aug: 89 °FDaily high, Sep: 87 °FDaily high, Oct: 83 °FDaily high, Nov: 76 °FDaily high, Dec: 72 °FDaily low, Jan: 50 °FDaily low, Feb: 53 °FDaily low, Mar: 56 °FDaily low, Apr: 61 °FDaily low, May: 67 °FDaily low, Jun: 72 °FDaily low, Jul: 73 °FDaily low, Aug: 74 °FDaily low, Sep: 73 °FDaily low, Oct: 68 °FDaily low, Nov: 60 °FDaily low, Dec: 54 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high697275808488908987837672
Daily low505356616772737473686054

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.06.0JanMarMayJulSepNovPort St. John, Jan: 2.3 inPort St. John, Feb: 2.1 inPort St. John, Mar: 2.3 inPort St. John, Apr: 1.9 inPort St. John, May: 2.6 inPort St. John, Jun: 4.7 inPort St. John, Jul: 3.9 inPort St. John, Aug: 5.3 inPort St. John, Sep: 5.9 inPort St. John, Oct: 3.5 inPort St. John, Nov: 1.8 inPort St. John, Dec: 2.0 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Port St. John2.32.12.31.92.64.73.95.35.93.51.82.0

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovPort St. John, Jan: 19 daysPort St. John, Feb: 18 daysPort St. John, Mar: 21 daysPort St. John, Apr: 22 daysPort St. John, May: 23 daysPort St. John, Jun: 16 daysPort St. John, Jul: 15 daysPort St. John, Aug: 14 daysPort St. John, Sep: 14 daysPort St. John, Oct: 20 daysPort St. John, Nov: 20 daysPort St. John, Dec: 18 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Port St. John191821222316151414202018

Compare Port St. John with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Florida city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).