February Weather in San Fernando Trinidad & TobagoDaily high temperatures are around 87°F, rarely falling below 84°F or exceeding 90°F. Daily low temperatures are around 72°F, rarely falling below 69°F or exceeding 75°F. For reference, on September 12, the hottest day of the year, temperatures in San Fernando typically range from 76°F to 89°F, while on January 20, the coldest day of the year, they range from 72°F to 86°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on February. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. Bandar Lampung, Indonesia (11,481 miles away); Kuching, Malaysia (11,456 miles); and Compostela, Philippines (11,104 miles) are the far-away foreign places with temperatures most similar to San Fernando (view comparison). CloudsThe month of February in San Fernando experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 65% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 64% on February 1. The clearest day of the month is February 1, with clear, mostly clear, or partly cloudy conditions 36% of the time. For reference, on April 18, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 74%, while on July 10, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 38%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In San Fernando, the chance of a wet day over the course of February is essentially constant, remaining around 9% throughout. For reference, the year's highest daily chance of a wet day is 55% on July 3, and its lowest chance is 7% on March 14. RainfallTo show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day. The average sliding 31-day rainfall during February in San Fernando is gradually decreasing, starting the month at 0.9 inches, when it rarely exceeds 2.8 inches, and ending the month at 0.6 inches, when it rarely exceeds 2.0 inches or falls below -0.0 inches. SunOver the course of February in San Fernando, the length of the day is essentially constant. The shortest day of the month is February 1, with 11 hours, 42 minutes of daylight and the longest day is February 29, with 11 hours, 56 minutes of daylight. The latest sunrise of the month in San Fernando is 6:28 AM on February 1 and the earliest sunrise is 8 minutes earlier at 6:20 AM on February 29. The earliest sunset is 6:10 PM on February 1 and the latest sunset is 6 minutes later at 6:16 PM on February 29. Daylight saving time is not observed in San Fernando during 2024. For reference, on June 20, the longest day of the year, the Sun rises at 5:45 AM and sets 12 hours, 44 minutes later, at 6:29 PM, while on December 21, the shortest day of the year, it rises at 6:18 AM and sets 11 hours, 32 minutes later, at 5:50 PM. The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation. MoonThe figure below presents a compact representation of key lunar data for February 2024. 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
HumidityWe 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. The chance that a given day will be muggy in San Fernando is essentially constant during February, remaining around 99% throughout. For reference, on June 8, the muggiest day of the year, there are muggy conditions 100% of the time, while on February 27, the least muggy day of the year, there are muggy conditions 98% of the time. WindThis 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 San Fernando is essentially constant during February, remaining within 0.2 miles per hour of 14.5 miles per hour throughout. For reference, on April 7, the windiest day of the year, the daily average wind speed is 14.8 miles per hour, while on September 4, the calmest day of the year, the daily average wind speed is 10.2 miles per hour. The hourly average wind direction in San Fernando throughout February is predominantly from the east, with a peak proportion of 99% on February 18. Water TemperatureSan Fernando 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 surface water temperature in San Fernando is essentially constant during February, remaining around 80°F throughout. The lowest average surface water temperature during February is 80°F on February 15. Growing SeasonDefinitions 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 San Fernando 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. 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. The average accumulated growing degree days in San Fernando are rapidly increasing during February, increasing by 785°F, from 873°F to 1,658°F, over the course of the month. Solar EnergyThis 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 in San Fernando is gradually increasing during February, rising by 0.5 kWh, from 6.1 kWh to 6.6 kWh, over the course of the month. TopographyFor the purposes of this report, the geographical coordinates of San Fernando are 10.283 deg latitude, -61.467 deg longitude, and 52 ft elevation. The topography within 2 miles of San Fernando contains only modest variations in elevation, with a maximum elevation change of 482 feet and an average elevation above sea level of 39 feet. Within 10 miles contains only modest variations in elevation (1,066 feet). Within 50 miles contains very significant variations in elevation (3,510 feet). The area within 2 miles of San Fernando is covered by water (53%) and grassland (31%), within 10 miles by water (41%) and cropland (17%), and within 50 miles by water (73%) and trees (17%). Data SourcesThis report illustrates the typical weather in San Fernando, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointThere is only a single weather station, Piarco International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of San Fernando. At a distance of 36 kilometers from San Fernando, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records. The station records are corrected for the elevation difference between the station and San Fernando according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis. Other DataAll data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe 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. Please review our full terms contained on our Terms of Service page. |