September weather forecast
Puerto Barrios, Guatemala

September weather in Puerto Barrios begins to hint at the upcoming dry season, although rainfall levels remain significantly high. Sea temperatures peak at 29.8°C (85.6°F) during September, adding a unique balmy flavor to the air. There is a marginal drop in temperature, while daylight hours begin to shrink. Even as changing weather patterns start ushering in a new climatic phase, Puerto Barrios remains a captivating fusion of the wet and warm.

Temperature

The average high-temperature during September is a still hot 30.5°C (86.9°F), almost matching the conditions of the preceding month. Puerto Barrios in September experiences a low-temperature average of 23.7°C (74.7°F).

Heat index

September's mean heat index is evaluated at a scorching 40°C (104°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in September is 81%.

Rainfall

In September, the rain falls for 28.5 days. Throughout September, 192mm (7.56") of precipitation is accumulated. Throughout the year, there are 299.7 rainfall days, and 1707mm (67.2") of precipitation is accumulated.

Sea temperature

The month with the warmest seawater in Puerto Barrios is September, with an average sea temperature of 29.8°C (85.6°F).
Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.

Daylight

The average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 05:41 and sunset at 18:06. On the last day of September, in Puerto Barrios, sunrise is at 05:44 and sunset at 17:44 CST.

Sunshine

In September, the average sunshine in Puerto Barrios, Guatemala, is 9h.

UV index

March through June, August 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 health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Heads up! UV intensity is amplified by reflections from water and sand.