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
September
Weather in September
Temperature
With the commencement of September, Cumbres de San Bartolomé records a moderate temperature decline, with the average high easing from August's tropical 34.4°C (93.9°F) to a warm 29.7°C (85.5°F). In September, the nighttime temperature in Cumbres de San Bartolomé plummets remarkably from the daily apex to a steady average of 15.9°C (60.6°F).Heat index
September's mean heat index is estimated at a hot 31°C (87.8°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
The average relative humidity in September is 51%.Rainfall
In Cumbres de San Bartolomé, during September, the rain falls for 5.2 days and regularly aggregates up to 9mm (0.35") of precipitation. In Cumbres de San Bartolomé, during the entire year, the rain falls for 90.1 days and collects up to 296mm (11.65") of precipitation.Daylight
The average length of the day in September is 12h and 26min.On the first day of September in Cumbres de San Bartolomé, Spain, sunrise is at 07:57 and sunset at 20:56. On the last day of the month, sunrise is at 08:22 and sunset at 20:11 CEST.
Sunshine
In September, the average sunshine in Cumbres de San Bartolomé is 9.6h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Cumbres de San Bartolomé during September?
What is the average humidity in September in Cumbres de San Bartolomé?
How much does it rain in Cumbres de San Bartolomé in September?
How many hours of daylight does Cumbres de San Bartolomé have in September?
When is the sunrise / sunset in September in Cumbres de San Bartolomé?
How many hours of sunshine does Cumbres de San Bartolomé have in September?
What is the UV index intensity in September in Cumbres de San Bartolomé?
Average temperature in September
Cumbres de San Bartolomé, Spain
- Average high temperature in September: 29.7°C
The warmest month (with the highest average high temperature) is August (34.4°C).
The month with the lowest average high temperature is January (13.1°C).
- Average low temperature in September: 15.9°C
The month with the highest average low temperature is August (17.2°C).
The coldest month (with the lowest average low temperature) is January (4°C).
Average pressure in September
Cumbres de San Bartolomé, Spain
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is August (1015.1mbar).
Average wind speed in September
Cumbres de San Bartolomé, Spain
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest month (with the lowest average wind speed) is September (7.8km/h).
Average humidity in September
Cumbres de San Bartolomé, Spain
- Average humidity in September: 51%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (42%).
Average rainfall in September
Cumbres de San Bartolomé, Spain
- Average rainfall in September: 9mm
The wettest month (with the highest rainfall) is March (45mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Cumbres de San Bartolomé, Spain
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is July (1.3 days).
Average daylight in September /
Average sunshine in September
Cumbres de San Bartolomé, Spain
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Cumbres de San Bartolomé, Spain
- Average sunshine days in September: 24 days
The month with the most sunshine days is July (29.2 days).
The month with the least sunshine days is April (16.3 days).
Average UV index in September
Cumbres de San Bartolomé, Spain
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Cumbres de San Bartolomé, Spain
- Average cloud cover in September: 17
The months with the most cloud cover are January and April (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in September
Cumbres de San Bartolomé, Spain
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and April (8km).
