Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September records an average high-temperature of a still tropical 32°C (89.6°F), indicating a minor variation from the preceding month. Astillero experiences an average nighttime temperature of 24.5°C (76.1°F) in the month of September.Heat index
September's mean heat index is appraised at a blisteringly hot 42°C (107.6°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
September and October, with an average relative humidity of 74%, are the most humid months.Rainfall
In Astillero, in September, during 26.2 rainfall days, 110mm (4.33") of precipitation is typically accumulated. Throughout the year, there are 190.7 rainfall days, and 718mm (28.27") of precipitation is accumulated.Daylight
In Astillero, the average length of the day in September is 12h and 12min.On the first day of the month, sunrise is at 05:49 and sunset at 18:12. On the last day of September, sunrise is at 05:50 and sunset at 17:51 CST.
Sunshine
In Astillero, the average sunshine in September is 10.4h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Astillero. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
How hot is it in Astillero in September?
What are the most humid months in Astillero?
What is the average humidity in September in Astillero?
How many days does it rain in September in Astillero?
What is the average length of the day in September in Astillero?
When is the sunrise / sunset in September in Astillero?
How many hours of sunshine does Astillero have in September?
When is the highest UV index in Astillero?
When is the lowest UV index in Astillero?
What is the UV index intensity in September in Astillero?
Average temperature in September
Astillero, Guatemala
- Average high temperature in September: 32°C
The warmest month (with the highest average high temperature) is April (33.3°C).
The month with the lowest average high temperature is October (31.5°C).
- Average low temperature in September: 24.5°C
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.7°C).
Average pressure in September
Astillero, Guatemala
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is January (1013.7mbar).
The month with the lowest atmospheric pressure is October (1011.5mbar).
Average wind speed in September
Astillero, Guatemala
- Average wind speed in September: 7.6km/h
The windiest month (with the highest average wind speed) is March (9.2km/h).
The calmest months (with the lowest average wind speed) are June and October (7.5km/h).
Average humidity in September
Astillero, Guatemala
- Average humidity in September: 74%
The months with the highest relative humidity are September and October (74%).
The month with the lowest relative humidity is March (60%).
Average rainfall in September
Astillero, Guatemala
- Average rainfall in September: 110mm
The wettest month (with the highest rainfall) is October (159mm).
The driest month (with the least rainfall) is January (3mm).
Average rainfall days in September
Astillero, Guatemala
- Average rainfall days in September: 26.2 days
The month with the highest number of rainy days is September (26.2 days).
The month with the least rainy days is January (3.1 days).
Average daylight in September /
Average sunshine in September
Astillero, Guatemala
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 10h and 2min
The months with the most sunshine are April and July (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 42min).
Average sunshine days in September
Astillero, Guatemala
- Average sunshine days in September: 2 days
The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is September (2 days).
Average UV index in September
Astillero, Guatemala
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Astillero, Guatemala
- Average cloud cover in September: 33
The month with the most cloud cover is June (Cloud cover 34).
The month with the least cloud cover is December (Cloud cover 10).
Average visibility in September
Astillero, Guatemala
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Astillero, Guatemala
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