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Average Weather in Goose Creek South Carolina, United States

In Goose Creek, the summers are hot and oppressive, the winters are short and cold, and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 39°F to 91°F and is rarely below 26°F or above 96°F.

Based on the tourism score, the best times of year to visit Goose Creek for warm-weather activities are from mid April to late May and from mid September to late October.

Climate Summary

coolwarmhotwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec66%66%45%45%clearovercastprecipitation: 5.2 inprecipitation: 5.2 in2.3 in2.3 inmuggy: 97%muggy: 97%1%1%tourism score: 6.4tourism score: 6.42.22.2
Click on each chart for more information.

Temperature

The hot season lasts for 3.7 months, from May 24 to September 15, with an average daily high temperature above 84°F. The hottest day of the year is July 20, with an average high of 91°F and low of 74°F.

The cool season lasts for 2.9 months, from December 2 to February 27, with an average daily high temperature below 65°F. The coldest day of the year is January 17, with an average low of 39°F and high of 59°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

Average Hourly Temperature in Goose CreekJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMvery coldcoldcoldcoldcoldcoolcoolcomfortablewarmwarmhotvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Matmata, Tunisia (5,015 miles away); Al Quwayrah, Jordan (6,388 miles); and Dursunlu, Turkey (6,137 miles) are the far-away foreign places with temperatures most similar to Goose Creek (view comparison).

Clouds

In Goose Creek, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Goose Creek begins around September 13 and lasts for 2.9 months, ending around December 9. On October 27, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 66% of the time, and overcast or mostly cloudy 34% of the time.

The cloudier part of the year begins around December 9 and lasts for 9.1 months, ending around September 13. On July 27, the cloudiest day of the year, the sky is overcast or mostly cloudy 55% of the time, and clear, mostly clear, or partly cloudy 45% of the time.

Cloud Cover Categories

Cloud Cover Categories in Goose CreekclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Oct 2766%Oct 2766%Jul 2745%Jul 2745%Sep 1355%Sep 1355%Dec 955%Dec 955%clearmostly clearmostly cloudyovercastpartly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Goose Creek varies significantly throughout the year.

The wetter season lasts 3.5 months, from May 31 to September 14, with a greater than 35% chance of a given day being a wet day. The chance of a wet day peaks at 51% on August 5.

The drier season lasts 8.5 months, from September 14 to May 31. The smallest chance of a wet day is 19% on October 30.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 51% on August 5.

Daily Chance of Precipitation

Daily Chance of Precipitation in Goose CreekwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Aug 551%Aug 551%Oct 3019%Oct 3019%Jan 124%Jan 124%May 3135%May 3135%Sep 1435%Sep 1435%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Goose Creek experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Goose Creek. The most rain falls during the 31 days centered around August 18, with an average total accumulation of 5.2 inches.

The least rain falls around November 11, with an average total accumulation of 2.3 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Sun

The length of the day in Goose Creek varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 58 minutes of daylight; the longest day is June 21, with 14 hours, 20 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in Goose CreekJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 2012 hr, 8 minMar 2014 hr, 20 minJun 2114 hr, 20 minJun 2112 hr, 8 minSep 2212 hr, 8 minSep 229 hr, 58 minDec 219 hr, 58 minDec 21nightnightday
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 6:10 AM on June 12, and the latest sunrise is 1 hour, 29 minutes later at 7:39 AM on November 3. The earliest sunset is at 5:13 PM on December 4, and the latest sunset is 3 hours, 20 minutes later at 8:32 PM on June 29.

Daylight saving time (DST) is observed in Goose Creek during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in Goose CreekJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 126:10 AMJun 126:10 AM8:32 PMJun 298:32 PMJun 29Dec 45:13 PMDec 45:13 PM7:39 AMNov 37:39 AMNov 3Mar 11DSTMar 11DSTDSTNov 4DSTNov 4daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2018. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Goose Creek experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 5.5 months, from May 4 to October 21, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The muggiest day of the year is July 22, with muggy conditions 97% of the time.

The least muggy day of the year is January 31, with muggy conditions 1% of the time.

Humidity Comfort Levels

Humidity Comfort Levels in Goose CreekmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jan 311%Jan 311%97%Jul 2297%Jul 22May 425%May 425%Oct 2125%Oct 2125%miserablemiserableoppressiveoppressivedrydryhumidhumidmuggymuggy
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Goose Creek experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.3 months, from November 5 to May 15, with average wind speeds of more than 6.8 miles per hour. The windiest day of the year is February 26, with an average hourly wind speed of 7.9 miles per hour.

The calmer time of year lasts for 5.7 months, from May 15 to November 5. The calmest day of the year is August 17, with an average hourly wind speed of 5.6 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Goose Creek varies throughout the year.

The wind is most often from the west for 2.3 months, from January 8 to March 18, with a peak percentage of 36% on January 20. The wind is most often from the south for 5.3 months, from March 18 to August 27, with a peak percentage of 50% on July 16. The wind is most often from the north for 3.4 months, from September 28 to January 8, with a peak percentage of 37% on January 1.

Wind Direction

Wind Direction in Goose CreekWSENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Goose Creek is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.4 months, from June 14 to September 28, with an average temperature above 79°F. The day of the year with the warmest water is August 3, with an average temperature of 83°F.

The time of year with cooler water lasts for 4.0 months, from December 20 to April 21, with an average temperature below 67°F. The day of the year with the coolest water is March 5, with an average temperature of 63°F.

Average Water Temperature

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Best Time of Year to Visit

To characterize how pleasant the weather is in Goose Creek throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Goose Creek for general outdoor tourist activities are from mid April to late May and from mid September to late October, with a peak score in the first week of May.

Tourism Score

Tourism Score in Goose Creekbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.46.42.22.26.36.34.04.0 precipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best times of year to visit Goose Creek for hot-weather activities are from mid May to mid July and from early August to late September, with a peak score in the first week of September.

Beach/Pool Score

Beach/Pool Score in Goose Creekbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec02468105.85.80.40.45.65.65.15.1 precipitationprecipitationcloudscloudstemperaturetemperaturebeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Growing Season

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Goose Creek typically lasts for 8.7 months (266 days), from around March 5 to around November 27, rarely starting before February 6 or after March 28, and rarely ending before November 6 or after December 20.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Goose Creekgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 550%Mar 550%Nov 2750%Nov 2790%Mar 2890%Mar 2890%Nov 690%Nov 610%Feb 610%Feb 610%Dec 2010%Dec 200%Jan 120%Jan 12Jul 27100%Jul 27100%very coldcoldcoolcomfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Goose Creek should appear around January 24, only rarely appearing before January 15 or after February 9.

Growing Degree Days

The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.0 months, from April 7 to July 8, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest day of the year is May 14, with an average of 6.7 kWh.

The darker period of the year lasts for 2.8 months, from November 11 to February 5, with an average daily incident shortwave energy per square meter below 3.5 kWh. The darkest day of the year is December 21, with an average of 2.7 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in Goose CreekbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhMay 146.7 kWhMay 146.7 kWhDec 212.7 kWhDec 212.7 kWhJul 85.9 kWhJul 85.9 kWhFeb 53.5 kWhFeb 53.5 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Goose Creek are 32.981 deg latitude, -80.033 deg longitude, and 30 ft elevation.

The topography within 2 miles of Goose Creek is essentially flat, with a maximum elevation change of 56 feet and an average elevation above sea level of 32 feet. Within 10 miles is essentially flat (151 feet). Within 50 miles contains only modest variations in elevation (509 feet).

The area within 2 miles of Goose Creek is covered by artificial surfaces (75%), trees (14%), and herbaceous vegetation (11%), within 10 miles by artificial surfaces (41%) and trees (32%), and within 50 miles by trees (37%) and water (32%).

Data Sources

This report illustrates the typical weather in Goose Creek, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Goose Creek.

For each station, the records are corrected for the elevation difference between that station and Goose Creek according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Goose Creek is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Goose Creek and a given station.

The stations contributing to this reconstruction are: Charleston International Airport (67%, 9 kilometers, south); Berkeley County Airport (17%, 22 kilometers, north); and Summerville Airport (15%, 25 kilometers, west).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.