Average Weather in Gibraltar Gibraltar
In Gibraltar, the temperature typically varies from 52°F to 82°F over the course of the year, and is rarely below 46°F or above 89°F.
The warm season lasts for 86 days, from June 22 to September 16, with an average daily high temperature above 78°F. The hottest day of the year is August 5, with an average high of 82°F and low of 70°F.
The cool season lasts for 124 days, from November 20 to March 24, with an average daily high temperature below 65°F. The coldest day of the year is January 19, with an average low of 52°F and high of 61°F.
Average High and Low Temperature
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
The length of the day in Gibraltar varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 42 minutes of daylight; the longest day is June 21, with 14 hours, 37 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 7:03 AM on June 13, and the latest sunrise is 1 hour, 37 minutes later at 8:40 AM on October 28. The earliest sunset is at 6:06 PM on December 6, and the latest sunset is 3 hours, 36 minutes later at 9:42 PM on June 29.
Daylight saving time (DST) is observed in Gibraltar during 2017, starting in the spring on March 26, lasting 216 days, and ending in the fall on October 29.
Sunrise & Sunset with Twilight and Daylight Saving Time
In Gibraltar, 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 Gibraltar begins around June 7 and lasts for 92 days, ending around September 7. On July 18, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 94% of the time, and overcast or mostly cloudy 6% of the time.
The cloudier part of the year begins around September 7 and lasts for 273 days, ending around June 7. On October 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 46% of the time, and clear, mostly clear, or partly cloudy 54% of the time.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Gibraltar varies throughout the year.
The wetter season lasts 225 days, from September 29 to May 12, with a greater than 13% chance of a given day being a wet day. The chance of a wet day peaks at 26% on November 17.
The drier season lasts 140 days, from May 12 to September 29. The smallest chance of a wet day is 0% on July 24.
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 26% on November 17.
Daily Chance of Precipitation
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 in the year. Gibraltar experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 258 days, from September 11 to May 27, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 28, with an average total accumulation of 3.2 inches.
The rainless period of the year lasts for 107 days, from May 27 to September 11. The least rain falls around July 28, with and average total accumulation of 0.0 inches.
Average Monthly Rainfall
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.
Gibraltar experiences very significant seasonal variation in the perceived humidity.
The muggier period of the year lasts for 117 days, from June 20 to October 15, during which time the comfort level is muggy, oppressive, or miserable at least 14% of the time. The muggiest day of the year is August 25, with muggy conditions 57% of the time.
The least muggy day of the year is February 11, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
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 Gibraltar experiences mildly seasonal variation over the course of the year.
The windier part of the year lasts for 190 days, from October 25 to May 3, with average wind speeds of more than 5.6 miles per hour. The windiest day of the year is February 24, with an average hourly wind speed of 6.4 miles per hour.
The calmer time of year lasts for 175 days, from May 3 to October 25. The calmest day of the year is August 13, with an average hourly wind speed of 4.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Gibraltar varies throughout the year.
The wind is most often from the west for 15 days, from January 7 to January 22; for 25 days, from January 27 to February 21; and for 88 days, from March 27 to June 23, with a peak percentage of 51% on May 2. The wind is most often from the east for 5 days, from January 22 to January 27; for 34 days, from February 21 to March 27; and for 198 days, from June 23 to January 7, with a peak percentage of 53% on July 22.
Gibraltar 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 83 days, from July 7 to September 28, with an average temperature above 69°F. The day of the year with the warmest water is August 12, with an average temperature of 72°F.
The time of year with cooler water lasts for 138 days, from December 14 to May 1, with an average temperature below 62°F. The day of the year with the coolest water is February 20, with an average temperature of 60°F.
Average Water Temperature
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 very significant seasonal variation over the course of the year.
The brighter period of the year lasts for 105 days, from May 7 to August 20, with an average daily incident shortwave energy per square meter above 7.0 kWh. The brightest day of the year is July 1, with an average of 8.2 kWh.
The darker period of the year lasts for 107 days, from October 27 to February 11, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest day of the year is December 17, with an average of 2.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Gibraltar are 36.145 deg latitude, -5.353 deg longitude, and 0 ft elevation (map ).
The topography within 2 miles of Gibraltar contains very significant variations in elevation, with a maximum elevation change of 1,329 feet, and an average elevation above sea level of 58 feet. Within 10 miles contains large variations in elevation (2,372 feet). Within 50 miles contains extreme variations in elevation (6,266 feet).
The area within 2 miles of Gibraltar is covered by water (58%) and artificial surfaces (31%), within 10 miles by water (62%) and shrubs (12%), and within 50 miles by water (51%) and trees (17%).
This report illustrates the typical weather in Gibraltar, 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 Gibraltar.
For each station, the records are corrected for the elevation difference between that station and Gibraltar 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 Gibraltar is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Gibraltar and a given station.
The stations contributing to this reconstruction are: Gibraltar International Airport (100%, 0.7 kilometers, north), Sania Ramel Airport (0.2%, 61 kilometers, south), and Tangier Ibn Battouta Airport (0.1%, 69 kilometers, southwest).
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 .