September weather forecastLas Cumbres, Panama
September
Weather in September
In September, Las Cumbres experiences a minor dip in the temperature. The level of precipitation is decreased from August, giving a hint of approaching dry season. The humidity stays relatively consistent, administering a moist atmosphere. The winds pick up in this period, making it a blissful respite from the humidity. Residents and tourists alike, enjoy milder mornings and breezy evenings, making September the start of an ideal time for outdoor activities.Temperature
With the advent of September, Las Cumbres's high-temperatures adjust to a still warm 29.1°C (84.4°F), closely aligning with the preceding month. Nights in September cool down, indicating a minor disparity from daytime highs with an average low-temperature of 24.1°C (75.4°F).Heat index
The average heat index in September is estimated at a sweltering 36°C (96.8°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Data suggests that the heat index is set for environments in shade and with a light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In September, the average relative humidity is 86%.Rainfall
In September, the rain falls for 24.4 days. Throughout September, 161mm (6.34") of precipitation is accumulated. Throughout the year, there are 282 rainfall days, and 1912mm (75.28") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 10min.On the first day of the month, sunrise is at 06:09 and sunset at 18:26. On the last day of September, sunrise is at 06:06 and sunset at 18:09 EST.
Sunshine
In September, the average sunshine is 7.9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Las Cumbres, Panama
- Average high temperature in September: 29.1°C
The warmest months (with the highest average high temperature) are March and April (30.8°C).
The months with the lowest average high temperature are October and November (28.7°C).
- Average low temperature in September: 24.1°C
The month with the highest average low temperature is June (24.9°C).
The coldest months (with the lowest average low temperature) are January and February (23.6°C).
Average pressure in September
Las Cumbres, 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 (1009.6mbar).
Average wind speed in September
Las Cumbres, Panama
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest months (with the lowest average wind speed) are June and September (6.3km/h).
Average humidity in September
Las Cumbres, 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
Las Cumbres, Panama
- Average rainfall in September: 161mm
The wettest month (with the highest rainfall) is July (273mm).
The driest month (with the least rainfall) is February (14mm).
Average rainfall days in September
Las Cumbres, Panama
- Average rainfall days in September: 24.4 days
The month with the highest number of rainy days is May (29.3 days).
The month with the least rainy days is February (11.6 days).
Average daylight in September /
Average sunshine in September
Las Cumbres, 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: 7h and 54min
The month with the most sunshine is May (Average sunshine: 8h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in September
Las Cumbres, Panama
- Average sunshine days in September: 5.1 days
The month with the most sunshine days is January (10.8 days).
The month with the least sunshine days is November (0.8 days).
Average UV index in September
Las Cumbres, 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, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Las Cumbres, Panama
- Average cloud cover in September: 44
The month with the most cloud cover is July (Cloud cover 51).
The months with the least cloud cover are January and February (Cloud cover 42).
Average visibility in September
Las Cumbres, Panama
- Average visibility in September: 9km
The months with the highest visibility are February, March and April (10km).
The months with the lowest visibility are July and August (8km).





