September weather forecast and climate
Saltillo, Colombia

Weather in September

September, the first month of the autumn, in Saltillo, is still a tropical month, with average temperature varying between 21.1°C (70°F) and 31.7°C (89.1°F).

Temperature

In September, the average high-temperature is practically the same as in August - a still hot 31.7°C (89.1°F). The average low-temperature, in Saltillo, Colombia, is 21.1°C (70°F).

Heat index

The average heat index is appraised at a scorching 44.1°C (111.4°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like pregnancy, clothing, wind, and activity influence one's weather impression. 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 particularly important for children. 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 cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in September is 82%.

Rainfall

In September, the rain falls for 29.9 days. Throughout September, 334mm (13.15") of precipitation is accumulated. In Saltillo, Colombia, during the entire year, the rain falls for 353.8 days and collects up to 3391mm (133.5") of precipitation.

Daylight

The average length of the day in Saltillo is 12.2h.

Sunshine

In Saltillo, the average sunshine is 8.9h.

UV index

January, March through June, September through December, with an average maximum UV index of 6, are months with the lowest UV index in Saltillo. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Saltillo?

In Saltillo, in September, the average high-temperature is 31.7°C (89.1°F), and the average low-temperature is 21.1°C (70°F). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), that takes the relative humidity and factores it into the air temperature reading, is evaluated at 44.1°C (111.4°F).

What is the average humidity in September in Saltillo?

The average relative humidity in September is 82%.

How many days does it rain in September in Saltillo?

In Saltillo, during September, the rain falls for 29.9 days and regularly aggregates up to 334mm (13.15") of precipitation.

How many hours of daylight does Saltillo have in September?

The average length of the day in September is 12.2h.

How many hours of sunshine does Saltillo have in September?

In September, the average sunshine is 8.9h.

What are the months with the lowest UV index in Saltillo?

January, March through June, September through December, with an average maximum UV index of 6, are months with the lowest UV index.

What is the UV index reading in September in Saltillo?

The average daily maximum UV index in September in Saltillo, Colombia, is 6. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV radiation.

Average temperature in September
Saltillo, Colombia

Average temperature in September - Saltillo, Colombia
  • Average high temperature in September: 31.7°C

The warmest month (with the highest average high temperature) is July (33.2°C).
The month with the lowest average high temperature is November (30.5°C).

  • Average low temperature in September: 21.1°C

The month with the highest average low temperature is April (22°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).

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Average pressure in September
Saltillo, Colombia

Average pressure in September - Saltillo, Colombia
  • Average pressure in September: 1010.6mbar

Months with the highest atmospheric pressure are May and September (1010.6mbar).
The month with the lowest atmospheric pressure is February (1010mbar).

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Average wind speed in September
Saltillo, Colombia

Average wind speed in September - Saltillo, Colombia
  • Average wind speed in September: 3.2km/h

The windiest month (with the highest average wind speed) is July (3.5km/h).
The calmest month (with the lowest average wind speed) is November (2.9km/h).

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Average humidity in September
Saltillo, Colombia

Average humidity in September - Saltillo, Colombia
  • Average humidity in September: 82%

The month with the highest relative humidity is November (86%).
The month with the lowest relative humidity is July (78%).

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Average rainfall in September
Saltillo, Colombia

Average rainfall in September - Saltillo, Colombia
  • Average rainfall in September: 334mm

The wettest month (with the highest rainfall) is May (365mm).
The driest month (with the least rainfall) is January (137mm).

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Average rainfall days in September
Saltillo, Colombia

Average rainfall days in September - Saltillo, Colombia
  • Average rainfall days in September: 29.9 days

The month with the highest number of rainy days is October (31 days).
The month with the least rainy days is February (26.6 days).

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Average daylight in September /
Average sunshine in September
Saltillo, Colombia

Average daylight in September / Average sunshine in September - Saltillo, Colombia
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.6h).
Months with the shortest days are January and December (Average daylight: 11.7h).

  • Average sunshine in September: 8.9h

Months with the most sunshine are July and August (Average sunshine: 10.3h).
The month with the least sunshine is December (Average sunshine: 7h).

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Average sunshine days in September
Saltillo, Colombia

Average sunshine days in September - Saltillo, Colombia
  • Average sunshine days in September: 0.1 days

The month with the most sunshine days is January (3.2 days).
Months with the least sunshine days are October and November (0 days).

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Average UV index in September
Saltillo, Colombia

Average UV index in September - Saltillo, Colombia
  • Average UV index in September: 6

Months with the highest UV index are February, July and August (UV index 7).
Months with the lowest UV index are January, March, April, May, June, September, October, November and December (UV index 6).

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Average cloud cover in September
Saltillo, Colombia

Average cloud cover in September - Saltillo, Colombia
  • Average cloud cover in September: 47

The month with the most cloud cover is November (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 42).

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Average visibility in September
Saltillo, Colombia

Average visibility in September - Saltillo, Colombia
  • Average visibility in September: 7km

Months with the highest visibility are January, February, March, April, June, July and August (8km).
Months with the lowest visibility are May, September, October, November and December (7km).

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