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 sea temperature 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
The beginning of September records an average high-temperature of a still tropical 33.1°C (91.6°F), almost echoing the conditions of the previous month. Throughout September, Guaymas witnesses a consistent average low-temperature of 27.8°C (82°F).Heat index
For most parts of September, the heat index is appraised at an extremely hot 40°C (104°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Heat index determinations are made taking into account the shade and light air movements. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. 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 highly important for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In Guaymas, the average relative humidity in September is 61%.Rainfall
September is the month with the most rainfall. Rain falls for 10.5 days and accumulates 46mm (1.81") of precipitation.Sea temperature
In September, the average sea temperature is 30.8°C (87.4°F).Note: Swimming or participating in water activities at temperatures above 30°C (86°F) might not be as invigorating as one might hope.
Daylight
In September, the average length of the day is 12h and 19min.On the first day of the month, sunrise is at 6:02 am and sunset at 6:44 pm. On the last day of September, in Guaymas, sunrise is at 6:16 am and sunset at 6:10 pm MST.
Sunshine
The average sunshine in September is 9.5h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 8 during September translates into the following directions:
Always be cautious. Skin and eyes can be affected swiftly without protection. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take caution! The UV rays from the Sun gain strength from sand and water reflections.
Frequently asked questions
How hot is it in Guaymas in September?
What is the average humidity in September in Guaymas?
What is the wettest month in Guaymas?
How many days does it rain in September in Guaymas?
What is the sea temperature in September in Guaymas?
How many hours of daylight does Guaymas have in September?
When are sunrise and sunset in September in Guaymas?
How long on average sun shines in September in Guaymas?
What are the months with the highest UV index in Guaymas?
What is the UV index reading in September in Guaymas?
Average temperature in September
Guaymas, Mexico
- Average high temperature in September: 33.1°C
The warmest month (with the highest average high temperature) is August (33.9°C).
The month with the lowest average high temperature is January (22.3°C).
- Average low temperature in September: 27.8°C
The month with the highest average low temperature is August (29.1°C).
The coldest month (with the lowest average low temperature) is January (15.1°C).
Average pressure in September
Guaymas, Mexico
- Average pressure in September: 1009.2mbar
The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).
Average wind speed in September
Guaymas, Mexico
- Average wind speed in September: 12.3km/h
The windiest months (with the highest average wind speed) are June and July (14km/h).
The calmest month (with the lowest average wind speed) is October (11.6km/h).
Average humidity in September
Guaymas, Mexico
- Average humidity in September: 61%
The month with the highest relative humidity is August (62%).
The month with the lowest relative humidity is May (43%).
Average rainfall in September
Guaymas, Mexico
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is September (46mm).
The driest month (with the least rainfall) is May (0mm).
Average rainfall days in September
Guaymas, Mexico
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (14.8 days).
The months with the least rainy days are April and May (0.6 days).
Average sea temperature in September
Guaymas, Mexico
- Average sea temperature in September: 30.8°C
The best month for swimming (with the highest average sea temperature) is August (31°C).
The coldest month (with the lowest average sea temperature) is February (17.2°C).
Average daylight in September /
Average sunshine in September
Guaymas, Mexico
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in September
Guaymas, Mexico
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is May (30.4 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in September
Guaymas, Mexico
- Average UV index in September: 8
The months with the highest UV index are June, July, August and September (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 5).
Average cloud cover in September
Guaymas, Mexico
- Average cloud cover in September: 16
The month with the most cloud cover is July (Cloud cover 20).
The month with the least cloud cover is May (Cloud cover 5).
Average visibility in September
Guaymas, 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).
Guaymas, Mexico
Weather forecast for your location
2. Allow the app to use your location
