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 commences with an average high-temperature of a still tropical 30.8°C (87.4°F), showing little deviation from August's 31.6°C (88.9°F). In the month of September, the average temperature dips to a warm 25.6°C (78.1°F) during the night.Heat index
For most parts of September, the heat index is calculated to be a blistering 40°C (104°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. 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.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. 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. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
The average relative humidity in September is 78%.Rainfall
In San Cristobal, in September, during 20.2 rainfall days, 85mm (3.35") of precipitation is typically accumulated. In San Cristobal, during the entire year, the rain falls for 169.4 days and collects up to 650mm (25.59") of precipitation.Daylight
The average length of the day in September in San Cristobal is 12h and 16min.On the first day of September, sunrise is at 07:14 and sunset at 19:48. On the last day of the month, sunrise is at 07:23 and sunset at 19:20 CDT.
Sunshine
In San Cristobal, the average sunshine in September is 9.3h.UV index
The months with the highest UV index are March through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
How hot is September in San Cristobal?
What is the average humidity in September in San Cristobal?
How many days does it rain in September in San Cristobal?
How many hours of daylight does San Cristobal have in September?
When is the sunrise / sunset in September in San Cristobal?
How many hours of sunshine does San Cristobal have in September?
What are the months with the highest UV index in San Cristobal?
What is the UV index reading in September in San Cristobal?
Average temperature in September
San Cristobal, Cuba
- Average high temperature in September: 30.8°C
The warmest month (with the highest average high temperature) is July (31.8°C).
The month with the lowest average high temperature is January (25.3°C).
- Average low temperature in September: 25.6°C
The month with the highest average low temperature is August (25.9°C).
The coldest month (with the lowest average low temperature) is January (19.7°C).
Average pressure in September
San Cristobal, Cuba
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is January (1018.3mbar).
The month with the lowest atmospheric pressure is October (1013.1mbar).
Average wind speed in September
San Cristobal, Cuba
- Average wind speed in September: 10.5km/h
The windiest months (with the highest average wind speed) are January and November (14.5km/h).
The calmest month (with the lowest average wind speed) is July (9.6km/h).
Average humidity in September
San Cristobal, Cuba
- Average humidity in September: 78%
The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are March and April (71%).
Average rainfall in September
San Cristobal, Cuba
- Average rainfall in September: 85mm
The wettest month (with the highest rainfall) is June (93mm).
The driest month (with the least rainfall) is March (12mm).
Average rainfall days in September
San Cristobal, Cuba
- Average rainfall days in September: 20.2 days
The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is February (6.8 days).
Average daylight in September /
Average sunshine in September
San Cristobal, Cuba
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are May and July (Average sunshine: 10h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 48min).
Average sunshine days in September
San Cristobal, Cuba
- Average sunshine days in September: 7.3 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is June (7.2 days).
Average UV index in September
San Cristobal, Cuba
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in September
San Cristobal, Cuba
- Average cloud cover in September: 25
The months with the most cloud cover are January, June and October (Cloud cover 30).
The month with the least cloud cover is April (Cloud cover 20).
Average visibility in September
San Cristobal, Cuba
- 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).
San Cristobal, Cuba
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