September weather forecastSan Pedro, Belize

Weather in September

September sees a continuation of substantial rainfall from August, although there is a slight reduction in the number of rainfall days in San Pedro, Belize. Although the height of the wet season has passed, the sea sustains its warmth, serving as a highlight for maritime activities. A decrease in wind speed and the lowest visibility of the year give the city a calmer, more muted look. Compared to the earlier few months, September reveals a less aggressive side of the wet season.

Temperature

Temperatures in San Pedro reach their maximum during August and September, recording an average high-temperature of 30.7°C (87.3°F).

Heat index

The heat index value for September is computed to be a blistering 40°C (104°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In San Pedro, Belize, the average relative humidity in September is 81%.

Rainfall

In San Pedro, in September, it is raining for 26.5 days, with typically 151mm (5.94") of accumulated precipitation. In San Pedro, Belize, during the entire year, the rain falls for 262.3 days and collects up to 1335mm (52.56") of precipitation.

Sea temperature

The month with the warmest seawater in San Pedro is September, with an average sea temperature of 29.8°C (85.6°F).
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of the month, sunrise is at 05:37 and sunset at 18:05. On the last day of September, sunrise is at 05:42 and sunset at 17:41 CST.

Sunshine

In September, the average sunshine in San Pedro, Belize, is 8.9h.

UV index

March through July and September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Caution! Sand and water reflections can notably increase the UV radiation intensity.