September weather forecast
Puerto Barrios, Guatemala

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Weather in September

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.

Frequently asked questions

How hot is September in Puerto Barrios?

During September, Puerto Barrios experiences an average high-temperature of 30.5°C (86.9°F) and a low-temperature of 23.7°C (74.7°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 40°C (104°F).

What is the average humidity in September in Puerto Barrios?

The average relative humidity in September in Puerto Barrios, Guatemala, is 81%.

How many days does it rain in September in Puerto Barrios?

In Puerto Barrios, in September, it is raining for 28.5 days, with typically 192mm (7.56") of accumulated precipitation.

What is the month with the warmest sea water in Puerto Barrios?

With an average sea temperature of 29.8°C (85.6°F), September is the month with the warmest seawater in Puerto Barrios.

What is the water temperature in September in Puerto Barrios?

In Puerto Barrios, in September, the average water temperature is 29.8°C (85.6°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Puerto Barrios have in September?

In Puerto Barrios, Guatemala, the average day length in September is 12h and 13min.

When are sunrise and sunset in September in Puerto Barrios?

On the first day of September in Puerto Barrios, sunrise is at 05:41 and sunset at 18:06. On the last day of the month, sunrise is at 05:44 and sunset at 17:44 CST.

How many hours of sunshine does Puerto Barrios have in September?

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

What are the months with the highest UV index in Puerto Barrios?

March through June, August and September, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in September in Puerto Barrios?

In September, the average daily maximum UV index in Puerto Barrios is 7. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.

Average temperature in September
Puerto Barrios, Guatemala

Average temperature in September - Puerto Barrios, Guatemala
  • Average high temperature in September: 30.5°C

The warmest month (with the highest average high temperature) is April (30.8°C).
The month with the lowest average high temperature is January (25.3°C).

  • Average low temperature in September: 23.7°C

The month with the highest average low temperature is June (24.2°C).
The coldest month (with the lowest average low temperature) is January (19.8°C).

Average pressure in September
Puerto Barrios, Guatemala

Average pressure in September - Puerto Barrios, Guatemala
  • Average pressure in September: 1011.9mbar

The month with the highest atmospheric pressure is January (1016.7mbar).
The month with the lowest atmospheric pressure is September (1011.9mbar).

Average wind speed in September
Puerto Barrios, Guatemala

Average wind speed in September - Puerto Barrios, Guatemala
  • Average wind speed in September: 6.9km/h

The windiest month (with the highest average wind speed) is July (8.2km/h).
The calmest month (with the lowest average wind speed) is November (6.4km/h).

Average humidity in September
Puerto Barrios, Guatemala

Average humidity in September - Puerto Barrios, Guatemala
  • Average humidity in September: 81%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is April (78%).

Average rainfall in September
Puerto Barrios, Guatemala

Average rainfall in September - Puerto Barrios, Guatemala
  • Average rainfall in September: 192mm

The wettest month (with the highest rainfall) is July (222mm).
The driest month (with the least rainfall) is April (58mm).

Average rainfall days in September
Puerto Barrios, Guatemala

Average rainfall days in September - Puerto Barrios, Guatemala
  • Average rainfall days in September: 28.5 days

The month with the highest number of rainy days is July (29.7 days).
The month with the least rainy days is April (19.3 days).

Average sea temperature in September
Puerto Barrios, Guatemala

Average sea temperature in September - Puerto Barrios, Guatemala
  • Average sea temperature in September: 29.8°C

The best month for swimming (with the highest average sea temperature) is September (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.6°C).

Average daylight in September /
Average sunshine in September
Puerto Barrios, Guatemala

Average daylight in September / Average sunshine in September - Puerto Barrios, Guatemala
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is April (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in September
Puerto Barrios, Guatemala

Average sunshine days in September - Puerto Barrios, Guatemala
  • Average sunshine days in September: 0.8 days

The month with the most sunshine days is March (7.7 days).
The months with the least sunshine days are July, August and September (0.8 days).

Average UV index in September
Puerto Barrios, Guatemala

Average UV index in September - Puerto Barrios, Guatemala
  • Average UV index in September: 7

The months with the highest UV index are March, April, May, June, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).

Average cloud cover in September
Puerto Barrios, Guatemala

Average cloud cover in September - Puerto Barrios, Guatemala
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is April (Cloud cover 35).

Average visibility in September
Puerto Barrios, Guatemala

Average visibility in September - Puerto Barrios, Guatemala
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

Puerto Barrios, Guatemala

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