Fall Weather in Bahamas Bahamas

Daily high temperatures decrease by 7°F, from 88°F to 81°F, rarely falling below 78°F or exceeding 90°F.

Daily low temperatures decrease by 5°F, from 79°F to 73°F, rarely falling below 70°F or exceeding 80°F.

For reference, on August 5, the hottest day of the year, temperatures in Bahamas typically range from 79°F to 88°F, while on January 15, the coldest day of the year, they range from 70°F to 79°F.

The figure below shows you a compact characterization of the hourly average fall temperatures. 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.

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The fall in Bahamas experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 62% to 32%. The highest chance of overcast or mostly cloudy conditions is 67% on September 19.

The clearest day of the fall is November 30, with clear, mostly clear, or partly cloudy conditions 68% of the time.

For reference, on June 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 68%, while on February 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 79%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Bahamas, the chance of a wet day over the course of the fall is very rapidly decreasing, starting the season at 20% and ending it at 11%.

For reference, the year's highest daily chance of a wet day is 30% on June 1, and its lowest chance is 6% on December 26.

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the fall in Bahamas is gradually decreasing, starting the season at 1.1 inches, when it rarely exceeds 2.3 inches or falls below 0.2 inches, and ending the season at 0.7 inches, when it rarely exceeds 1.6 inches.

The highest average 31-day accumulation is 1.9 inches on October 13.

Over the course of the fall in Bahamas, the length of the day is rapidly decreasing. From the start to the end of the season, the length of the day decreases by 1 hour, 55 minutes, implying an average daily decrease of 1 minute, 17 seconds, and weekly decrease of 8 minutes, 57 seconds.

The shortest day of the fall is November 30, with 10 hours, 42 minutes of daylight and the longest day is September 1, with 12 hours, 37 minutes of daylight.

The latest sunrise of the fall in Bahamas is 7:17 AM on November 2 and the earliest sunrise is 59 minutes earlier at 6:18 AM on November 3.

The latest sunset is 7:27 PM on September 1 and the earliest sunset is 2 hours, 8 minutes earlier at 5:19 PM on November 28.

Daylight saving time (DST) starts at 1:00 AM on November 3, 2024, shifting sunrise and sunset to be an hour later.

For reference, on June 20, the longest day of the year, the Sun rises at 6:20 AM and sets 13 hours, 42 minutes later, at 8:02 PM, while on December 21, the shortest day of the year, it rises at 6:50 AM and sets 10 hours, 35 minutes later, at 5:25 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.

The figure below presents a compact representation of key lunar data for the fall of 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.

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.

The chance that a given day will be muggy in Bahamas is very rapidly decreasing during the fall, falling from 100% to 73% over the course of the season.

For reference, on June 12, the muggiest day of the year, there are muggy conditions 100% of the time, while on February 19, the least muggy day of the year, there are muggy conditions 48% of the time.

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 Bahamas is rapidly increasing during the fall, increasing from 12.1 miles per hour to 15.0 miles per hour over the course of the season.

For reference, on November 26, the windiest day of the year, the daily average wind speed is 15.2 miles per hour, while on September 18, the calmest day of the year, the daily average wind speed is 11.5 miles per hour.

The highest daily average wind speed during the fall is 15.2 miles per hour on November 26. The lowest daily average wind speed during the fall is 11.5 miles per hour on September 19.

The hourly average wind direction in Bahamas throughout the fall is predominantly from the east, with a peak proportion of 80% on September 1.

Bahamas 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 Bahamas is decreasing during the fall, falling by 6°F, from 85°F to 79°F, over the course of the 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).

Temperatures in Bahamas 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 Bahamas are very rapidly increasing during the fall, increasing by 2,704°F, from 6,887°F to 9,590°F, over the course of the season.

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 in Bahamas is gradually decreasing during the fall, falling by 0.8 kWh, from 5.0 kWh to 4.2 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Bahamas are 25.041 deg latitude, -77.371 deg longitude, and 0 ft elevation.

The topography within 2 miles of Bahamas 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 Bahamas is covered by grassland (60%), trees (19%), and shrubs (17%), within 10 miles by water (83%), and within 50 miles by water (93%).