September weather forecastCatarina, Guatemala
September
Weather in September
September, the first month of the autumn in Catarina, is still a tropical month, with an average temperature varying between 30.1°C (86.2°F) and 23.8°C (74.8°F).Temperature
In September, Catarina experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 30.7°C (87.3°F) in August to a still tropical 30.1°C (86.2°F). Catarina, in the month of September, anticipates a consistent average low-temperature of 23.8°C (74.8°F).Heat index
During September, the heat index is estimated at a fiery hot 37°C (98.6°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
The average relative humidity in September in Catarina is 75%.Rainfall
In Catarina, during September, the rain falls for 27.6 days and regularly aggregates up to 167mm (6.57") of precipitation. Throughout the year, there are 226.8 rainfall days, and 1216mm (47.87") of precipitation is accumulated.Daylight
In Catarina, Guatemala, the average length of the day in September is 12h and 13min.On the first day of September, sunrise is at 05:56 and sunset at 18:20. On the last day of the month, sunrise is at 05:57 and sunset at 17:58 CST.
Sunshine
In September, the average sunshine is 11h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 7 in September translates into these instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Catarina, Guatemala
- Average high temperature in September: 30.1°C
The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is October (29.7°C).
- Average low temperature in September: 23.8°C
The month with the highest average low temperature is May (25.1°C).
The coldest months (with the lowest average low temperature) are January and December (22.2°C).
Average pressure in September
Catarina, Guatemala
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is January (1013.8mbar).
The month with the lowest atmospheric pressure is October (1011.6mbar).
Average wind speed in September
Catarina, Guatemala
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is March (8.1km/h).
The calmest month (with the lowest average wind speed) is November (6.4km/h).
Average humidity in September
Catarina, Guatemala
- Average humidity in September: 75%
The month with the highest relative humidity is October (76%).
The months with the lowest relative humidity are January, February and March (63%).
Average rainfall in September
Catarina, Guatemala
- Average rainfall in September: 167mm
The wettest month (with the highest rainfall) is May (244mm).
The driest month (with the least rainfall) is January (6mm).
Average rainfall days in September
Catarina, Guatemala
- Average rainfall days in September: 27.6 days
The month with the highest number of rainy days is May (29.1 days).
The month with the least rainy days is January (3.9 days).
Average daylight in September /
Average sunshine in September
Catarina, Guatemala
- Average daylight in September: 12h and 12min
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 18min).
- Average sunshine in September: 11h and 0min
The months with the most sunshine are May and July (Average sunshine: 11h and 12min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).
Average sunshine days in September
Catarina, Guatemala
- Average sunshine days in September: 1.5 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (0.6 days).
Average UV index in September
Catarina, 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
Catarina, Guatemala
- Average cloud cover in September: 35
The month with the most cloud cover is June (Cloud cover 36).
The months with the least cloud cover are January and December (Cloud cover 11).
Average visibility in September
Catarina, Guatemala
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, September, October, November and December (10km).
The months with the lowest visibility are May and August (9km).
