September weather forecastLa Pena, Panama

September

Weather in September

September, the first month of the autumn in La Pena, is also a moderately hot month, with an average temperature varying between 29.8°C (85.6°F) and 22.4°C (72.3°F).

Temperature

The advent of September reveals an average high-temperature of a still moderately hot 29.8°C (85.6°F), showing minimal difference from the prior month. La Pena records an average nighttime low of 22.4°C (72.3°F) in September.

Heat index

The heat index value for September is appraised at a sweltering 39°C (102.2°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values remain especially vital for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The months with the highest humidity are July through October, with an average relative humidity of 88%.

Rainfall

In La Pena, during September, the rain falls for 29.5 days and regularly aggregates up to 262mm (10.31") of precipitation. In La Pena, during the entire year, the rain falls for 269.3 days and collects up to 2235mm (87.99") of precipitation.

Daylight

In September, the average length of the day is 12h and 10min.
On the first day of the month, sunrise is at 06:15 and sunset at 18:31. On the last day of September, sunrise is at 06:12 and sunset at 18:15 EST.

Sunshine

The average sunshine in September is 7.4h.

UV index

The months with the highest UV index are January through June and September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.

Frequently asked questions

The high-temperature, in September, in La Pena, records 29.8°C (85.6°F), while the low-temperature is 22.4°C (72.3°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 39°C (102.2°F).

July through October, with an average relative humidity of 88%, are most humid months.

The average relative humidity in September is 88%.

In La Pena, in September, it is raining for 29.5 days, with typically 262mm (10.31") of accumulated precipitation.

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

On the first day of September, sunrise is at 06:15 and sunset at 18:31. On the last day of the month, sunrise is at 06:12 and sunset at 18:15 EST.

In September, the average sunshine duration is 7.4h.

The months with the highest UV index are January through June and September, with an average maximum UV index of 7.

The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
La Pena, Panama

  • Average high temperature in September: 29.8°C

The warmest month (with the highest average high temperature) is March (34.6°C).
The month with the lowest average high temperature is October (29.2°C).

  • Average low temperature in September: 22.4°C

The month with the highest average low temperature is April (23.7°C).
The coldest month (with the lowest average low temperature) is January (21.2°C).

Average pressure in September
La Pena, Panama

  • Average pressure in September: 1010.2mbar

The month with the highest atmospheric pressure is January (1010.7mbar).
The month with the lowest atmospheric pressure is November (1009.9mbar).

Average wind speed in September
La Pena, Panama

  • Average wind speed in September: 4.6km/h

The windiest month (with the highest average wind speed) is March (8.6km/h).
The calmest months (with the lowest average wind speed) are June and July (4.2km/h).

Average humidity in September
La Pena, Panama

  • Average humidity in September: 88%

The months with the highest relative humidity are July, August, September and October (88%).
The month with the lowest relative humidity is March (65%).

Average rainfall in September
La Pena, Panama

  • Average rainfall in September: 262mm

The wettest month (with the highest rainfall) is August (309mm).
The driest month (with the least rainfall) is February (11mm).

Average rainfall days in September
La Pena, Panama

  • Average rainfall days in September: 29.5 days

The month with the highest number of rainy days is October (31 days).
The month with the least rainy days is February (5.3 days).

Average daylight in September /
Average sunshine in September
La Pena, 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 42min).

  • Average sunshine in September: 7h and 24min

The month with the most sunshine is January (Average sunshine: 9h and 36min).
The month with the least sunshine is October (Average sunshine: 6h and 42min).

Average sunshine days in September
La Pena, Panama

  • Average sunshine days in September: 0.4 days

The month with the most sunshine days is February (21.1 days).
The month with the least sunshine days is October (0.1 days).

Average UV index in September
La Pena, Panama

  • Average UV index in September: 7

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

Average cloud cover in September
La Pena, Panama

  • Average cloud cover in September: 53

The month with the most cloud cover is October (Cloud cover 58).
The month with the least cloud cover is February (Cloud cover 18).

Average visibility in September
La Pena, Panama

  • Average visibility in September: 6km

The months with the highest visibility are February and March (10km).
The months with the lowest visibility are August, September, October and November (6km).