Average Weather in Belize City Belize
In Belize City, the temperature typically varies from 71°F to 88°F over the course of the year, and is rarely below 65°F or above 91°F.
The hot season lasts for 5.0 months, from May 6 to October 5, with an average daily high temperature above 87°F. The hottest day of the year is August 29, with an average high of 88°F and low of 79°F.
The cool season lasts for 2.8 months, from December 6 to February 27, with an average daily high temperature below 82°F. The coldest day of the year is January 14, with an average low of 71°F and high of 81°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 Belize City varies over the course of the year. In 2017, the shortest day is December 21, with 11 hours, 5 minutes of daylight; the longest day is June 21, with 13 hours, 11 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:17 AM on June 4, and the latest sunrise is 1 hour, 9 minutes later at 6:26 AM on January 19. The earliest sunset is at 5:15 PM on November 22, and the latest sunset is 1 hour, 16 minutes later at 6:31 PM on July 5.
Daylight saving time (DST) is not observed in Belize City during 2017.
Sunrise & Sunset with Twilight
In Belize City, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.
The clearer part of the year in Belize City begins around November 9 and lasts for 5.9 months, ending around May 6. On February 16, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 79% of the time, and overcast or mostly cloudy 21% of the time.
The cloudier part of the year begins around May 6 and lasts for 6.1 months, ending around November 9. On June 18, the cloudiest day of the year, the sky is overcast or mostly cloudy 85% of the time, and clear, mostly clear, or partly cloudy 15% 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 Belize City varies significantly throughout the year.
The wetter season lasts 7.3 months, from May 29 to January 8, with a greater than 26% chance of a given day being a wet day. The chance of a wet day peaks at 41% on September 29.
The drier season lasts 4.7 months, from January 8 to May 29. The smallest chance of a wet day is 10% on April 17.
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 41% on September 29.
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. Belize City experiences very significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Belize City. The most rain falls during the 31 days centered around October 6, with an average total accumulation of 6.7 inches.
The least rain falls around April 4, with and average total accumulation of 0.9 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.
Belize City experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 11 months, from February 4 to December 21, during which time the comfort level is muggy, oppressive, or miserable at least 89% of the time. The muggiest day of the year is July 29, with muggy conditions 100% of the time.
The least muggy day of the year is January 14, with muggy conditions 85% of the time.
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 Belize City experiences mildly seasonal variation over the course of the year.
The windier part of the year lasts for 6.7 months, from January 21 to August 12, with average wind speeds of more than 4.7 miles per hour. The windiest day of the year is June 26, with an average hourly wind speed of 5.3 miles per hour.
The calmer time of year lasts for 5.3 months, from August 12 to January 21. The calmest day of the year is October 4, with an average hourly wind speed of 4.1 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Belize City is from the east throughout the year.
Belize City 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 3.1 months, from July 14 to October 17, with an average temperature above 84°F. The day of the year with the warmest water is September 12, with an average temperature of 85°F.
The time of year with cooler water lasts for 3.3 months, from December 17 to March 26, with an average temperature below 81°F. The day of the year with the coolest water is January 27, with an average temperature of 79°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 some seasonal variation over the course of the year.
The brighter period of the year lasts for 2.4 months, from March 5 to May 17, with an average daily incident shortwave energy per square meter above 6.3 kWh. The brightest day of the year is April 10, with an average of 6.9 kWh.
The darker period of the year lasts for 1.9 months, from August 25 to October 23, with an average daily incident shortwave energy per square meter below 4.7 kWh. The darkest day of the year is September 22, with an average of 4.2 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Belize City are 17.500 deg latitude, -88.198 deg longitude, and 0 ft elevation.
The topography within 2 miles of Belize City is essentially flat, with a maximum elevation change of 82 feet, and an average elevation above sea level of 10 feet. Within 10 miles contains only modest variations in elevation (102 feet). Within 50 miles contains extreme variations in elevation (3,294 feet).
The area within 2 miles of Belize City is covered by water (60%) and grassland (18%), within 10 miles by water (74%) and mangroves (11%), and within 50 miles by water (61%) and trees (27%).
This report illustrates the typical weather in Belize City, 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 is only a single weather station, Belize International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Belize City.
At a distance of 13 kilometers from Belize City, 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 Belize City 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.
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 .