Park climate1991–2020 climate normals1 m source elevationNASA POWER

A twelve-month record of climate normals based on representative coordinates in Georgia

Cumberland Island National Seashore Climate Averages: Monthly Temperature and Precipitation Profiles

Name: Cumberland Island National Seashore monthly climate normals
Creator: NASA POWER

The climate profile for Cumberland Island National Seashore provides a detailed look at monthly atmospheric conditions measured from 1991 to 2020. This dataset tracks mean, minimum, and maximum temperatures alongside daily precipitation rates and humidity percentages. Supplemental metrics include average wind speed and daylight hours to characterize the annual rhythm of this protected area. Data originates from a single representative point to offer consistent baseline patterns across the calendar year.

View park overview Browse climate zones

A flat-style digital illustration of a marsh landscape featuring a winding waterway flanked by trees with hanging moss and grassy banks under a soft peach-colored sky.

Annual climate pattern

Long term monthly averages for temperature range and daily precipitation rates across twelve months

Cumberland Island National Seashore Annual Climate Normals and Monthly Temperature Patterns

Average monthly temperatures span from a January low mean of thirteen degrees Celsius up to peak summer maximums exceeding thirty two degrees in July and August. Average daily precipitation rates fluctuate through the calendar year based on historical climatology records collected at a representative coordinate.

Mean temperatureAverage minimum–maximum rangePrecipitation

Annual mean: 21.2 °C
Warmest month: July
Coolest month: January
Wettest month: June

Twelve-month climate

Track long-term monthly averages across temperature bounds, humidity, wind speed, and daylight hours from 1991 to 2020.

Cumberland Island National Seashore Climate Analysis: Twelve-Month Temperature, Precipitation, and Daylight Records

Examine twelve distinct monthly climate records for Cumberland Island National Seashore, comparing average minimum, mean, and maximum temperatures alongside daily precipitation rates. Analyzing these comprehensive metrics across the entire calendar year reveals shifts in atmospheric humidity, wind speed, and calculated daylight duration at a representative coordinate.

	Mean temperature	Precipitation	Humidity	Wind speed	Daylight
January	13.6 °C3.2° to 20.7°	2.9 mm/day	79.3%	4.8 m/s	10.3 hours
February	14.4 °C5.1° to 21.2°	2.7 mm/day	79.9%	4.5 m/s	10.9 hours
March	16.6 °C7.5° to 23.5°	2.8 mm/day	79%	4.5 m/s	11.8 hours
April	20 °C12.2° to 26.1°	2.2 mm/day	77.6%	4.4 m/s	12.8 hours
May	23.8 °C17.6° to 29.8°	2.5 mm/day	76.7%	4.4 m/s	13.6 hours
June	26.6 °C22.9° to 31.5°	5.3 mm/day	79.7%	4.1 m/s	14 hours
July	27.9 °C25° to 32.3°	4.3 mm/day	79.9%	3.8 m/s	13.8 hours
August	27.9 °C24.9° to 32°	5.2 mm/day	79.7%	3.9 m/s	13.1 hours
September	26.7 °C21.9° to 30.7°	4.7 mm/day	78.1%	4.7 m/s	12.2 hours
October	23.2 °C14.9° to 28.1°	3.5 mm/day	76.1%	4.7 m/s	11.2 hours
November	18.6 °C9.6° to 24.4°	2 mm/day	77.7%	4.7 m/s	10.4 hours
December	15.3 °C6.2° to 22°	2.4 mm/day	80.5%	4.6 m/s	10 hours

Compare two months

See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.

First month

Second month

Mean temperature: January: 13.6 °C; July: 27.9 °C; Change from January to July: +14.3 °C
Precipitation: January: 2.9 mm/day; July: 4.3 mm/day; Change from January to July: +1.4 mm/day
Daylight: January: 10.3 hours; July: 13.8 hours; Change from January to July: +3.5 hours

Calculated climate highlights

Comparative analysis of long-term temperature, precipitation, wind, and daylight normals

Cumberland Island National Seashore Monthly Climate Highlights and Extremes

Calculated monthly averages isolate comparative high and low points for temperature, precipitation, humidity, and daylight duration across the sampled coordinate. These derived baselines summarize annual climatological patterns without representing specific historical weather events or park-wide variations.

Warmest month: July27.9 °C
Coolest month: January13.6 °C
Wettest month: June5.3 mm/day
Driest month: November2 mm/day
Most humid month: December80.5%
Windiest month: January4.8 m/s
Longest daylight: June14 hours

Interactive climate map

National park climate map

Open the climate map to compare monthly temperature, precipitation, and other averages.

Global National Park Climate Map

Other park climates

Month-by-month temperature and precipitation patterns across diverse protected landscapes

Comparing Cumberland Island National Seashore Climate Profiles with Other Protected Areas

Standardized monthly climate normals allow researchers to examine temperature and precipitation rhythms across different protected landscapes and geographic settings. Evaluating humidity, wind, and daylight metrics alongside annual temperature records reveals distinct atmospheric contrasts between coastal environments and regional reserves.