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
The average high-temperature for September is a still tropical 32.5°C (90.5°F), closely aligning with the temperature of the preceding month. During the month of September, the temperature generally drops to a low average of 23.8°C (74.8°F).Heat index
September's average heat index is evaluated at a blisteringly hot 44°C (111.2°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.In the scope of the heat index, its values resonate with shade and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
September is the most humid month, with an average relative humidity of 74%.Rainfall
In San Francisco del Mar, in September, during 21.2 rainfall days, 102mm (4.02") of precipitation is typically accumulated. In San Francisco del Mar, during the entire year, the rain falls for 132.1 days and collects up to 500mm (19.69") of precipitation.Daylight
The average length of the day in September is 12h and 13min.On the first day of September, sunrise is at 6:04 am and sunset at 6:30 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 6:07 pm CST.
Sunshine
The average sunshine in September in San Francisco del Mar is 8.7h.UV index
February through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 7 in September interprets into the following advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in San Francisco del Mar in September?
What is the most humid month in San Francisco del Mar?
What is the average humidity in September in San Francisco del Mar?
How many days does it rain in September in San Francisco del Mar?
What is the average length of the day in September in San Francisco del Mar?
When is the sunrise / sunset in September in San Francisco del Mar?
How long on average sun shines in September in San Francisco del Mar?
What are the months with the highest UV index in San Francisco del Mar?
What is the UV index reading in September in San Francisco del Mar?
Average temperature in September
San Francisco del Mar, Mexico
- Average high temperature in September: 32.5°C
The warmest month (with the highest average high temperature) is May (34.4°C).
The month with the lowest average high temperature is January (28°C).
- Average low temperature in September: 23.8°C
The month with the highest average low temperature is May (25.1°C).
The coldest month (with the lowest average low temperature) is January (19.8°C).
Average pressure in September
San Francisco del Mar, Mexico
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is May (1011.2mbar).
Average wind speed in September
San Francisco del Mar, Mexico
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is November (22.3km/h).
The calmest month (with the lowest average wind speed) is June (10.8km/h).
Average humidity in September
San Francisco del Mar, Mexico
- Average humidity in September: 74%
The month with the highest relative humidity is September (74%).
The months with the lowest relative humidity are April and May (63%).
Average rainfall in September
San Francisco del Mar, Mexico
- Average rainfall in September: 102mm
The wettest month (with the highest rainfall) is August (109mm).
The driest months (with the least rainfall) are January and March (2mm).
Average rainfall days in September
San Francisco del Mar, Mexico
- Average rainfall days in September: 21.2 days
The month with the highest number of rainy days is June (22.8 days).
The month with the least rainy days is February (2.4 days).
Average daylight in September /
Average sunshine in September
San Francisco del Mar, Mexico
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 30min).
Average sunshine days in September
San Francisco del Mar, Mexico
- Average sunshine days in September: 6 days
The month with the most sunshine days is December (27.3 days).
The month with the least sunshine days is June (5.3 days).
Average UV index in September
San Francisco del Mar, Mexico
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in September
San Francisco del Mar, Mexico
- Average cloud cover in September: 36
The months with the most cloud cover are June and September (Cloud cover 36).
The month with the least cloud cover is December (Cloud cover 12).
Average visibility in September
San Francisco del Mar, 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).
