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
Cihuatlán starts September with an average high-temperature of a warm 29.5°C (85.1°F), a minor shift from August's 30°C (86°F). Cihuatlán, during September nights, records a temperature marginally cooler than the daytime average, at 25°C (77°F).Heat index
During September, the heat index is calculated to be a sweltering 36°C (96.8°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially vital to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
September is the most humid month in Cihuatlán, Mexico, with an average relative humidity of 80%.Rainfall
The month with the most rainfall in Cihuatlán is September, when the rain falls for 24.6 days and typically aggregates up to 180mm (7.09") of precipitation.Daylight
The average length of the day in September is 12h and 14min.On the first day of September in Cihuatlán, Mexico, sunrise is at 6:43 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:47 pm CST.
Sunshine
The months with the least sunshine in Cihuatlán are August and September, with an average of 8.9h of sunshine.UV index
The months with the highest UV index are April through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
How hot does it get in Cihuatlán in September?
What is the most humid month in Cihuatlán?
What is the average humidity in September in Cihuatlán?
What is the rainiest month in Cihuatlán?
How many days does it rain in September in Cihuatlán?
What is the average length of the day in September in Cihuatlán?
What time are sunrise and sunset in September in Cihuatlán?
What are the months with the least sunshine in Cihuatlán?
How long on average sun shines in September in Cihuatlán?
What is the month with the highest UV index in Cihuatlán?
How high is the UV index in September in Cihuatlán?
Average temperature in September
Cihuatlán, Mexico
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is July (30.3°C).
The month with the lowest average high temperature is February (27.6°C).
- Average low temperature in September: 25°C
The months with the highest average low temperature are July and August (25.3°C).
The coldest month (with the lowest average low temperature) is February (21.3°C).
Average pressure in September
Cihuatlán, Mexico
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is January (1014.1mbar).
The month with the lowest atmospheric pressure is September (1011mbar).
Average wind speed in September
Cihuatlán, Mexico
- Average wind speed in September: 10km/h
The windiest months (with the highest average wind speed) are August and September (10km/h).
The calmest month (with the lowest average wind speed) is December (8km/h).
Average humidity in September
Cihuatlán, Mexico
- Average humidity in September: 80%
The month with the highest relative humidity is September (80%).
The month with the lowest relative humidity is April (64%).
Average rainfall in September
Cihuatlán, Mexico
- Average rainfall in September: 180mm
The wettest month (with the highest rainfall) is September (180mm).
The driest month (with the least rainfall) is April (0mm).
Average rainfall days in September
Cihuatlán, Mexico
- Average rainfall days in September: 24.6 days
The month with the highest number of rainy days is August (26.3 days).
The month with the least rainy days is March (1.3 days).
Average daylight in September /
Average sunshine in September
Cihuatlán, Mexico
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are March and April (Average sunshine: 9h and 54min).
The months with the least sunshine are August and September (Average sunshine: 8h and 54min).
Average sunshine days in September
Cihuatlán, Mexico
- Average sunshine days in September: 2.9 days
The month with the most sunshine days is April (29.6 days).
The month with the least sunshine days is August (2.3 days).
Average UV index in September
Cihuatlán, Mexico
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 6).
Average cloud cover in September
Cihuatlán, Mexico
- Average cloud cover in September: 34
The month with the most cloud cover is September (Cloud cover 34).
The months with the least cloud cover are March and April (Cloud cover 8).
Average visibility in September
Cihuatlán, Mexico
- 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).
Cihuatlán, Mexico
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