September weather forecastMendoza, Panama

September

Weather in September

September, the first month of the autumn in Mendoza, is still a warm month, with an average temperature fluctuating between 29.2°C (84.6°F) and 23.9°C (75°F).

Temperature

September's average high-temperature stands at a still moderately hot 29.2°C (84.6°F), showing little deviation from August's 29.1°C (84.4°F). In Mendoza, the nighttime temperature averages to a still moderately hot 23.9°C (75°F) during September.

Heat index

For most parts of September, the heat index is calculated to be a sweltering 37°C (98.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In September, the average relative humidity is 86%.

Rainfall

In September, the rain falls for 28 days. Throughout September, 152mm (5.98") of precipitation is accumulated. In Mendoza, during the entire year, the rain falls for 308.7 days and collects up to 1598mm (62.91") of precipitation.

Daylight

In Mendoza, the average length of the day in September is 12h and 10min.
On the first day of September, sunrise is at 06:10 and sunset at 18:27. On the last day of the month, sunrise is at 06:07 and sunset at 18:10 EST.

Sunshine

The average sunshine in September in Mendoza is 8.3h.

UV index

January through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Deter overexposure. Protecting against the sun's effects is essential. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

The high-temperature, in September, in Mendoza, records 29.2°C (84.6°F), while the low-temperature is 23.9°C (75°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 37°C (98.6°F).

In September, the average relative humidity is 86%.

In September, the rain falls for 28 days. Throughout September, 152mm (5.98") of precipitation is accumulated.

In September, the average day length is 12h and 10min.

On the first day of September, sunrise is at 06:10 and sunset at 18:27. On the last day of the month, sunrise is at 06:07 and sunset at 18:10 EST.

In Mendoza, the average sunshine duration in September is 8.3h.

January through November, with an average maximum UV index of 7, are months with the highest UV index.

The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Mendoza, Panama

  • Average high temperature in September: 29.2°C

The warmest months (with the highest average high temperature) are March and April (30.7°C).
The months with the lowest average high temperature are November and December (28.7°C).

  • Average low temperature in September: 23.9°C

The month with the highest average low temperature is May (24.6°C).
The coldest month (with the lowest average low temperature) is February (23.4°C).

Average pressure in September
Mendoza, Panama

  • Average pressure in September: 1010mbar

The month with the highest atmospheric pressure is March (1011mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).

Average wind speed in September
Mendoza, Panama

  • Average wind speed in September: 5.6km/h

The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is September (5.6km/h).

Average humidity in September
Mendoza, Panama

  • Average humidity in September: 86%

The months with the highest relative humidity are July, August and November (87%).
The month with the lowest relative humidity is March (77%).

Average rainfall in September
Mendoza, Panama

  • Average rainfall in September: 152mm

The wettest month (with the highest rainfall) is August (209mm).
The driest month (with the least rainfall) is February (17mm).

Average rainfall days in September
Mendoza, Panama

  • Average rainfall days in September: 28 days

The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is February (15.3 days).

Average daylight in September /
Average sunshine in September
Mendoza, Panama

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).

  • Average sunshine in September: 8h and 18min

The month with the most sunshine is May (Average sunshine: 8h and 42min).
The month with the least sunshine is November (Average sunshine: 5h and 54min).

Average sunshine days in September
Mendoza, Panama

  • Average sunshine days in September: 1.8 days

The month with the most sunshine days is March (8.8 days).
The month with the least sunshine days is November (0.3 days).

Average UV index in September
Mendoza, Panama

  • Average UV index in September: 7

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

Average cloud cover in September
Mendoza, Panama

  • Average cloud cover in September: 42

The months with the most cloud cover are July, November and December (Cloud cover 49).
The months with the least cloud cover are February and March (Cloud cover 41).

Average visibility in September
Mendoza, Panama

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March and April (10km).
The months with the lowest visibility are May, June, July, August, September, October, November and December (9km).