September weather forecastCelmira, Panama

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Celmira, Panama, with an average temperature ranging between min 22.5°C (72.5°F) and max 29.1°C (84.4°F).

Temperature

The advent of September reveals an average high-temperature of a still warm 29.1°C (84.4°F), showing minimal difference from the prior month. During September, Celmira sees a mean low-temperature of 22.5°C (72.5°F).

Heat index

September's heat index is estimated at a sweltering 36°C (96.8°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Note that heat index values are valued for light wind and location in the shade. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In September, the average relative humidity in Celmira, Panama, is 83%.

Rainfall

In September, in Celmira, Panama, the rain falls for 22 days. Throughout September, 137mm (5.39") of precipitation is accumulated. Throughout the year, in Celmira, there are 217.9 rainfall days, and 1377mm (54.21") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 10min.
On the first day of September, sunrise is at 06:22 and sunset at 18:39. On the last day of the month, sunrise is at 06:19 and sunset at 18:22 EST.

Sunshine

The average sunshine in September in Celmira is 8.3h.

UV index

January through July and September, with an average maximum UV index of 7, are months with the highest UV index in Celmira. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: In September, a regular UV index of 7 translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

In September, in Celmira, the average high-temperature is 29.1°C (84.4°F), and the average low-temperature is 22.5°C (72.5°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in September is estimated at 36°C (96.8°F).

In Celmira, the average relative humidity in September is 83%.

In Celmira, Panama, in September, during 22 rainfall days, 137mm (5.39") of precipitation is typically accumulated.

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

In September, on the first day of the month, sunrise is at 06:22 and sunset at 18:39. On the last day of the month, in Celmira, Panama, sunrise is at 06:19 and sunset at 18:22 EST.

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

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

In Celmira, Panama, 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 the Sun's UV radiation.
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
Celmira, Panama

  • Average high temperature in September: 29.1°C

The warmest month (with the highest average high temperature) is March (33°C).
The month with the lowest average high temperature is October (28.5°C).

  • Average low temperature in September: 22.5°C

The month with the highest average low temperature is May (23.7°C).
The coldest month (with the lowest average low temperature) is January (21.3°C).

Average pressure in September
Celmira, Panama

  • Average pressure in September: 1010.9mbar

The month with the highest atmospheric pressure is January (1011.5mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).

Average wind speed in September
Celmira, Panama

  • Average wind speed in September: 6.1km/h

The windiest month (with the highest average wind speed) is February (9.5km/h).
The calmest months (with the lowest average wind speed) are July and August (5.8km/h).

Average humidity in September
Celmira, Panama

  • Average humidity in September: 83%

The month with the highest relative humidity is October (84%).
The month with the lowest relative humidity is March (62%).

Average rainfall in September
Celmira, Panama

  • Average rainfall in September: 137mm

The wettest month (with the highest rainfall) is October (221mm).
The driest month (with the least rainfall) is March (13mm).

Average rainfall days in September
Celmira, Panama

  • Average rainfall days in September: 22 days

The month with the highest number of rainy days is October (26.8 days).
The month with the least rainy days is February (7.7 days).

Average daylight in September /
Average sunshine in September
Celmira, 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 months with the most sunshine are January and February (Average sunshine: 9h and 42min).
The month with the least sunshine is October (Average sunshine: 7h and 36min).

Average sunshine days in September
Celmira, Panama

  • Average sunshine days in September: 7.4 days

The month with the most sunshine days is March (18.1 days).
The month with the least sunshine days is November (1.4 days).

Average UV index in September
Celmira, Panama

  • Average UV index in September: 7

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

Average cloud cover in September
Celmira, Panama

  • Average cloud cover in September: 38

The month with the most cloud cover is October (Cloud cover 44).
The month with the least cloud cover is February (Cloud cover 14).

Average visibility in September
Celmira, Panama

  • Average visibility in September: 9km

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