September weather forecastSan Alejo, Mexico
September
Weather in September
September, the first month of the autumn in San Alejo, is also a moderately hot month, with temperature in the range of an average low of 14.9°C (58.8°F) and an average high of 25.9°C (78.6°F).Temperature
The introduction of September notes a subtle temperature variation to a still moderately hot 25.9°C (78.6°F) from August's 27.2°C (81°F). Throughout September, San Alejo's nights cool down to an average of 14.9°C (58.8°F).Humidity
With an average relative humidity of 81%, September is the most humid month in San Alejo.Rainfall
In September, the rain falls for 27.3 days. Throughout September, 210mm (8.27") of precipitation is accumulated. In San Alejo, during the entire year, the rain falls for 187.6 days and collects up to 1136mm (44.72") of precipitation.Daylight
In September, the average length of the day is 12h and 14min.On the first day of September in San Alejo, sunrise is at 6:24 am and sunset at 6:53 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:27 pm CST.
Sunshine
In September, the average sunshine in San Alejo is 9h.UV index
The months with the lowest UV index are January, June, August through December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily UV index of 5 turns into the following recommendations:
Take precautions - Protection against sunburn is recommended. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
San Alejo, Mexico
- Average high temperature in September: 25.9°C
The warmest month (with the highest average high temperature) is April (32.1°C).
The month with the lowest average high temperature is December (24.8°C).
- Average low temperature in September: 14.9°C
The month with the highest average low temperature is May (18.3°C).
The coldest month (with the lowest average low temperature) is January (11.6°C).
Average pressure in September
San Alejo, Mexico
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is January (1016.5mbar).
The month with the lowest atmospheric pressure is May (1013.2mbar).
Average wind speed in September
San Alejo, Mexico
- Average wind speed in September: 4.6km/h
The windiest month (with the highest average wind speed) is April (6km/h).
The calmest months (with the lowest average wind speed) are August and September (4.6km/h).
Average humidity in September
San Alejo, Mexico
- Average humidity in September: 81%
The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is April (36%).
Average rainfall in September
San Alejo, Mexico
- Average rainfall in September: 210mm
The wettest month (with the highest rainfall) is June (212mm).
The driest month (with the least rainfall) is December (6mm).
Average rainfall days in September
San Alejo, Mexico
- Average rainfall days in September: 27.3 days
The month with the highest number of rainy days is August (29 days).
The month with the least rainy days is January (4.2 days).
Average daylight in September /
Average sunshine in September
San Alejo, Mexico
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are January, February, April, May and December (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 8h and 36min).
Average sunshine days in September
San Alejo, Mexico
- Average sunshine days in September: 1.4 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is August (0.8 days).
Average UV index in September
San Alejo, Mexico
- Average UV index in September: 5
The months with the highest UV index are February, March, April, May and July (UV index 6).
The months with the lowest UV index are January, June, August, September, October, November and December (UV index 5).
Average cloud cover in September
San Alejo, Mexico
- Average cloud cover in September: 38
The month with the most cloud cover is September (Cloud cover 38).
The months with the least cloud cover are February, March, April and December (Cloud cover 11).
Average visibility in September
San Alejo, Mexico
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The month with the lowest visibility is September (8km).
