Fall Weather in Suriname Suriname

Daily high temperatures are around 89°F, rarely falling below 84°F or exceeding 94°F. The highest daily average high temperature is 91°F on October 1.

Daily low temperatures are around 76°F, rarely falling below 74°F or exceeding 78°F. The highest daily average low temperature is 76°F on October 19.

For reference, on September 29, the hottest day of the year, temperatures in Suriname typically range from 76°F to 91°F, while on January 31, the coldest day of the year, they range from 75°F to 85°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 Suriname experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 49% to 70%. The highest chance of overcast or mostly cloudy conditions is 70% on November 29.

The clearest day of the fall is September 3, with clear, mostly clear, or partly cloudy conditions 51% of the time.

For reference, on April 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 74%, while on August 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 53%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Suriname, the chance of a wet day over the course of the fall is very rapidly increasing, starting the season at 32% and ending it at 51%.

For reference, the year's highest daily chance of a wet day is 87% on June 6, and its lowest chance is 25% on September 15.

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 Suriname is rapidly increasing, starting the season at 1.9 inches, when it rarely exceeds 3.7 inches or falls below 0.8 inches, and ending the season at 3.8 inches, when it rarely exceeds 6.8 inches or falls below 1.5 inches.

The lowest average 31-day accumulation is 1.3 inches on September 29.

Over the course of the fall in Suriname, the length of the day is gradually decreasing. From the start to the end of the season, the length of the day decreases by 16 minutes, implying an average daily decrease of 11 seconds, and weekly decrease of 1 minute, 17 seconds.

The shortest day of the fall is November 30, with 11 hours, 55 minutes of daylight and the longest day is September 1, with 12 hours, 11 minutes of daylight.

The latest sunrise of the fall in Suriname is 6:38 AM on September 1 and the earliest sunrise is 10 minutes earlier at 6:28 AM on October 26.

The latest sunset is 6:49 PM on September 1 and the earliest sunset is 23 minutes earlier at 6:26 PM on November 7.

Daylight saving time is not observed in Suriname during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:35 AM and sets 12 hours, 21 minutes later, at 6:56 PM, while on December 21, the shortest day of the year, it rises at 6:45 AM and sets 11 hours, 54 minutes later, at 6:39 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 Suriname is essentially constant during the fall, remaining around 100% throughout.

For reference, on April 29, 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 99% 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 Suriname is gradually increasing during the fall, increasing from 4.5 miles per hour to 5.5 miles per hour over the course of the season.

For reference, on February 19, the windiest day of the year, the daily average wind speed is 6.3 miles per hour, while on July 18, the calmest day of the year, the daily average wind speed is 4.1 miles per hour.

The hourly average wind direction in Suriname throughout the fall is predominantly from the east, with a peak proportion of 93% on September 8.

Suriname 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 Suriname is essentially constant during the fall, remaining within 1°F of 82°F throughout.

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 Suriname 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 Suriname are very rapidly increasing during the fall, increasing by 2,830°F, from 7,315°F to 10,145°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 Suriname is gradually decreasing during the fall, falling by 1.0 kWh, from 6.4 kWh to 5.4 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the fall is 6.4 kWh on September 13.

For the purposes of this report, the geographical coordinates of Suriname are 4.000 deg latitude, -56.000 deg longitude, and 0 ft elevation.

The topography within 2 miles of Suriname 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 Suriname is covered by trees (99%), within 10 miles by trees (99%), and within 50 miles by trees (98%).