Climate and Average Weather Year Round in Gibraltar Gibraltar
In Gibraltar, the summers are short, warm, humid, arid, and mostly clear and the winters are long, cool, wet, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 52°F to 82°F and is rarely below 46°F or above 89°F.
Based on the beach/pool score, the best time of year to visit Gibraltar for hot-weather activities is from late June to early September.
Climate in Gibraltar
The warm season lasts for 2.8 months, from June 22 to September 15, with an average daily high temperature above 78°F. The hottest month of the year in Gibraltar is August, with an average high of 82°F and low of 70°F.
The cool season lasts for 4.1 months, from November 20 to March 23, with an average daily high temperature below 65°F. The coldest month of the year in Gibraltar is January, with an average low of 52°F and high of 61°F.
Average High and Low Temperature in Gibraltar
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 in Gibraltar
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
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 3.0 months, ending around September 6.
The clearest month of the year in Gibraltar is July, during which on average the sky is clear, mostly clear, or partly cloudy 93% of the time.
The cloudier part of the year begins around September 6 and lasts for 9.0 months, ending around June 7.
The cloudiest month of the year in Gibraltar is October, during which on average the sky is overcast or mostly cloudy 42% of the time.
Cloud Cover Categories in Gibraltar
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
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 7.5 months, from September 28 to May 13, with a greater than 13% chance of a given day being a wet day. The month with the most wet days in Gibraltar is November, with an average of 7.4 days with at least 0.04 inches of precipitation.
The drier season lasts 4.5 months, from May 13 to September 28. The month with the fewest wet days in Gibraltar is July, with an average of 0.2 days with at least 0.04 inches of precipitation.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Gibraltar is November, with an average of 7.4 days. 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 in Gibraltar
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. Gibraltar experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 8.5 months, from September 11 to May 27, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Gibraltar is December, with an average rainfall of 3.1 inches.
The rainless period of the year lasts for 3.5 months, from May 27 to September 11. The month with the least rain in Gibraltar is July, with an average rainfall of 0.0 inches.
Average Monthly Rainfall in Gibraltar
The length of the day in Gibraltar varies significantly over the course of the year. In 2021, 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 in Gibraltar
The earliest sunrise is at 7:03 AM on June 13, and the latest sunrise is 1 hour, 39 minutes later at 8:42 AM on October 30. The earliest sunset is at 6:06 PM on December 5, and the latest sunset is 3 hours, 36 minutes later at 9:42 PM on June 28.
Daylight saving time (DST) is observed in Gibraltar during 2021, starting in the spring on March 28, lasting 7.1 months, and ending in the fall on October 31.
Sunrise & Sunset with Twilight and Daylight Saving Time in Gibraltar
The figure below presents a compact representation of key lunar data for 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.
Moon Rise, Set & Phases in Gibraltar
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 extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.9 months, from June 19 to October 15, during which time the comfort level is muggy, oppressive, or miserable at least 14% of the time. The month with the most muggy days in Gibraltar is August, with 17.1 days that are muggy or worse.
The least muggy day of the year is February 11, when muggy conditions are essentially unheard of.
Humidity Comfort Levels in Gibraltar
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 mild seasonal variation over the course of the year.
The windier part of the year lasts for 6.3 months, from October 25 to May 2, with average wind speeds of more than 10.4 miles per hour. The windiest month of the year in Gibraltar is February, with an average hourly wind speed of 11.7 miles per hour.
The calmer time of year lasts for 5.7 months, from May 2 to October 25. The calmest month of the year in Gibraltar is August, with an average hourly wind speed of 9.2 miles per hour.
Average Wind Speed in Gibraltar
The predominant average hourly wind direction in Gibraltar varies throughout the year.
The wind is most often from the west for 2.1 weeks, from January 7 to January 22; for 3.6 weeks, from January 27 to February 21; and for 2.9 months, from March 27 to June 23, with a peak percentage of 51% on May 2. The wind is most often from the east for 5.0 days, from January 22 to January 27; for 1.2 months, from February 21 to March 27; and for 6.5 months, from June 23 to January 7, with a peak percentage of 47% on March 10.
Wind Direction in Gibraltar
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 2.7 months, from July 7 to September 27, with an average temperature above 70°F. The month of the year in Gibraltar with the warmest water is August, with an average temperature of 72°F.
The time of year with cooler water lasts for 4.6 months, from December 15 to May 1, with an average temperature below 62°F. The month of the year in Gibraltar with the coolest water is February, with an average temperature of 60°F.
Average Water Temperature in Gibraltar
To characterize how pleasant the weather is in Gibraltar 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 time of year to visit Gibraltar for general outdoor tourist activities is from late May to mid September, with a peak score in the first week of July.
Tourism Score in Gibraltar
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Gibraltar for hot-weather activities is from late June to early September, with a peak score in the first week of August.
Beach/Pool Score in Gibraltar
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.
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).
Temperatures in Gibraltar are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season in Gibraltar
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
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.
Growing Degree Days in Gibraltar
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 extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.4 months, from May 8 to August 20, with an average daily incident shortwave energy per square meter above 7.0 kWh. The brightest month of the year in Gibraltar is June, with an average of 8.0 kWh.
The darker period of the year lasts for 3.4 months, from October 27 to February 11, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest month of the year in Gibraltar is December, with an average of 2.5 kWh.
Average Daily Incident Shortwave Solar Energy in Gibraltar
For the purposes of this report, the geographical coordinates of Gibraltar are 36.133 deg latitude, -5.350 deg longitude, and 0 ft elevation.
The topography within 2 miles of Gibraltar is essentially flat, with a maximum elevation change of 0 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (0 feet). Within 50 miles is also essentially flat (0 feet).
The area within 2 miles of Gibraltar is covered by water (73%) and artificial surfaces (14%), within 10 miles by water (67%) and shrubs (12%), and within 50 miles by water (52%) 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.
The details of the data sources used for this report can be found on the Gibraltar International Airport page.
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.