September weather forecastCalkini, Mexico
September
Weather in September
September, the first month of the autumn in Calkini, is still a tropical month, with an average temperature ranging between min 25.3°C (77.5°F) and max 30.7°C (87.3°F).Temperature
The introduction of September notes a subtle temperature variation to a still hot 30.7°C (87.3°F) from August's 31.4°C (88.5°F). Throughout September nights, Calkini registers an average low-temperature of 25.3°C (77.5°F).Heat index
For most parts of September, the heat index is appraised at a fiery hot 39°C (102.2°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Know that the heat index computations account for shaded terrains and slight winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. 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 hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
September is the most humid month, with an average relative humidity of 78%.Rainfall
In Calkini, Mexico, in September, during 22.7 rainfall days, 91mm (3.58") of precipitation is typically accumulated. Throughout the year, there are 154.1 rainfall days, and 532mm (20.94") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 15min.On the first day of the month, sunrise is at 5:44 am and sunset at 6:15 pm. On the last day of September, in Calkini, sunrise is at 5:51 am and sunset at 5:48 pm CST.
Sunshine
In September, the average sunshine is 10.6h.UV index
The months with the highest UV index are March through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 7 during September translates into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calkini, Mexico
- Average high temperature in September: 30.7°C
The warmest month (with the highest average high temperature) is August (31.4°C).
The month with the lowest average high temperature is January (25.8°C).
- Average low temperature in September: 25.3°C
The month with the highest average low temperature is June (25.7°C).
The coldest month (with the lowest average low temperature) is January (20.7°C).
Average pressure in September
Calkini, Mexico
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is January (1017.5mbar).
The month with the lowest atmospheric pressure is September (1011.8mbar).
Average wind speed in September
Calkini, Mexico
- Average wind speed in September: 15.9km/h
The windiest month (with the highest average wind speed) is March (20.9km/h).
The calmest month (with the lowest average wind speed) is September (15.9km/h).
Average humidity in September
Calkini, Mexico
- Average humidity in September: 78%
The month with the highest relative humidity is September (78%).
The months with the lowest relative humidity are March and April (71%).
Average rainfall in September
Calkini, Mexico
- Average rainfall in September: 91mm
The wettest month (with the highest rainfall) is June (103mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days in September
Calkini, Mexico
- Average rainfall days in September: 22.7 days
The month with the highest number of rainy days is September (22.7 days).
The month with the least rainy days is February (4.8 days).
Average daylight in September /
Average sunshine in September
Calkini, Mexico
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 10h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 6h and 30min).
Average sunshine days in September
Calkini, Mexico
- Average sunshine days in September: 4.7 days
The month with the most sunshine days is March (24.8 days).
The month with the least sunshine days is September (4.7 days).
Average UV index in September
Calkini, Mexico
- 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
Calkini, Mexico
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 30).
The months with the least cloud cover are April and July (Cloud cover 19).
Average visibility in September
Calkini, 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).
