Spring Weather in Bata Equatorial Guinea

Daily high temperatures are around 87°F, rarely falling below 83°F or exceeding 90°F.

Daily low temperatures are around 76°F, rarely falling below 74°F or exceeding 79°F.

For reference, on February 24, the hottest day of the year, temperatures in Bata typically range from 77°F to 88°F, while on July 23, the coldest day of the year, they range from 74°F to 83°F.

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

Punta de Burica, Panama (6,387 miles away) and Barrancabermeja, Colombia (5,772 miles) are the far-away foreign places with temperatures most similar to Bata (view comparison).

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The spring in Bata experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 86% throughout the season. The highest chance of overcast or mostly cloudy conditions is 90% on April 27.

The clearest day of the spring is May 31, with clear, mostly clear, or partly cloudy conditions 19% of the time.

For reference, on April 27, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 90%, while on July 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 31%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Bata, the chance of a wet day over the course of the spring is decreasing, starting the season at 57% and ending it at 53%.

For reference, the year's highest daily chance of a wet day is 90% on October 31, and its lowest chance is 17% on July 23.

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 spring in Bata is essentially constant, remaining about 8.3 inches throughout, and rarely exceeding 15.0 inches or falling below 1.6 inches.

The highest average 31-day accumulation is 9.8 inches on April 1.

Over the course of the spring in Bata, the length of the day is essentially constant. The shortest day of the spring is March 1, with 12 hours, 5 minutes of daylight and the longest day is May 31, with 12 hours, 13 minutes of daylight.

The latest sunrise of the spring in Bata is 6:30 AM on March 1 and the earliest sunrise is 20 minutes earlier at 6:11 AM on May 18.

The latest sunset is 6:35 PM on March 1 and the earliest sunset is 12 minutes earlier at 6:23 PM on May 9.

Daylight saving time is not observed in Bata during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:15 AM and sets 12 hours, 14 minutes later, at 6:29 PM, while on December 21, the shortest day of the year, it rises at 6:18 AM and sets 12 hours, 1 minute later, at 6:19 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 spring 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 Bata is essentially constant during the spring, remaining around 100% throughout.

For reference, on January 1, the muggiest day of the year, there are muggy conditions 100% of the time, while on July 3, the least muggy day of the year, there are muggy conditions 100% 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 Bata is essentially constant during the spring, remaining within 0.3 miles per hour of 5.6 miles per hour throughout.

For reference, on August 2, the windiest day of the year, the daily average wind speed is 6.9 miles per hour, while on May 2, the calmest day of the year, the daily average wind speed is 5.3 miles per hour.

The lowest daily average wind speed during the spring is 5.3 miles per hour on May 2.

The hourly average wind direction in Bata throughout the spring is predominantly from the west, with a peak proportion of 72% on March 1.

Bata 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 Bata is essentially constant during the spring, remaining within 1°F of 83°F throughout.

The highest average surface water temperature during the spring is 84°F on March 26.

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 Bata 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 Bata are very rapidly increasing during the spring, increasing by 2,831°F, from 1,881°F to 4,712°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 Bata is essentially constant during the spring, remaining within 0.3 kWh of 3.8 kWh throughout.

The lowest average daily incident shortwave solar energy during the spring is 3.5 kWh on May 7.

For the purposes of this report, the geographical coordinates of Bata are 1.864 deg latitude, 9.766 deg longitude, and 43 ft elevation.

The topography within 2 miles of Bata contains only modest variations in elevation, with a maximum elevation change of 135 feet and an average elevation above sea level of 33 feet. Within 10 miles contains only modest variations in elevation (1,263 feet). Within 50 miles contains very significant variations in elevation (4,016 feet).

The area within 2 miles of Bata is covered by water (60%), grassland (12%), and shrubs (11%), within 10 miles by water (67%) and trees (22%), and within 50 miles by water (56%) and trees (35%).