Culiacán Rosales
Mexico
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Culiacán Rosales, Mexico

September, the first month of the autumn, in Culiacán Rosales, is still a tropical month, with average temperature fluctuating between 34.4°C (93.9°F) and 23.6°C (74.5°F).

Temperature

In Culiacán Rosales, Mexico, the average high-temperature in September is practically the same as in August - a still hot 34.4°C (93.9°F). The average low-temperature, in Culiacán Rosales, is 23.6°C (74.5°F).

Heat index

The average heat index is estimated at a life-threatening hot 50.9°C (123.6°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, pregnancy, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

Months with the highest humidity are August and September, with an average relative humidity of 75%.

Rainfall

In Culiacán Rosales, Mexico, it is raining for 10.8 days, with typically 141.6mm (5.6") of accumulated precipitation. In Culiacán Rosales, during the entire year, the rain falls for 53.3 days and collects up to 667.3mm (26.3") of precipitation.

Daylight

In Culiacán Rosales, the average length of the day is 12.3h.

Sunshine

The average sunshine in Culiacán Rosales is 6.5h.

UV index

The average daily maximum UV index in Culiacán Rosales is 11. A UV Index value of 11, and more, symbolizes an extreme threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 11 translate into the following recommendations:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.

What is the temperature in September in Culiacán Rosales?

The average high-temperature, in September, is 34.4°C (93.9°F), while the average low-temperature is 23.6°C (74.5°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines relative humidity and air temperature, is appraised at 50.9°C (123.6°F).

What is the most humid month in Culiacán Rosales?

August and September, with an average relative humidity of 75%, are most humid months in Culiacán Rosales.

What is the average humidity in September in Culiacán Rosales?

In Culiacán Rosales, Mexico, the average relative humidity in September is 75%.

How many days does it rain in September in Culiacán Rosales?

In Culiacán Rosales, in September, it is raining for 10.8 days, with typically 141.6mm (5.6") of accumulated precipitation.

How many hours of daylight does Culiacán Rosales have in September?

In Culiacán Rosales, the average length of the day in September is 12.3h.

How many hours of sunshine does Culiacán Rosales have in September?

In Culiacán Rosales, the average sunshine in September is 6.5h.

What is the UV index reading in September in Culiacán Rosales?

The average daily maximum UV index in September is 11. A UV Index value of 11, and more, symbolizes an ultimate hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in September - Culiacán Rosales, Mexico
  • Average high temperature in September: 34.4°C

The warmest month (with the highest average high temperature) is June (35.9°C).
The month with the lowest average high temperature is January (27.8°C).

  • Average low temperature in September: 23.6°C

The month with the highest average low temperature is July (24.1°C).
The coldest month (with the lowest average low temperature) is January (10.9°C).

Average humidity in September - Culiacán Rosales, Mexico
  • Average humidity in September: 75%

Months with the highest relative humidity are August and September (75%).
The month with the lowest relative humidity is May (64%).

Average rainfall in September - Culiacán Rosales, Mexico
  • Average rainfall in September: 141.6mm

The wettest month (with the highest rainfall) is August (209.2mm).
The driest month (with the lowest rainfall) is May (1.1mm).

Average rainfall days in September - Culiacán Rosales, Mexico
  • Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is August (14.8 days).
The month with the lowest number of rainy days is May (0.2 days).

Average daylight in September / Average sunshine in September - Culiacán Rosales, Mexico
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.7h).
The month with shortest days is December (Average daylight: 10.6h).

  • Average sunshine in September: 6.5h

The month with most sunshine is May (Average sunshine: 8h).
The month with least sunshine is December (Average sunshine: 5.9h).

Average UV index in September - Culiacán Rosales, Mexico
  • Average UV index in September: 11

Months with the highest UV index are May, June, July and August (UV index 12).
Months with the lowest UV index are January and December (UV index 5).