September weather forecastBalboa, Panama
September
Weather in September
Weather in September marks a slight easing in the rainy season for Balboa, Panama, with a decrease in rainfall to 182mm (7.17") compared to the previous month. Temperatures begin to cool slightly, along with sunlight hours reducing, marking the transition towards the year-end. However, humidity levels remain constant, ensuring the tropical feel continues. Breezy conditions persist due to the wind, providing a smidgen of freshness. The UV index remains steady, indicating the need for continuous sun protection.Temperature
Balboa in September witnesses an average high-temperature of a still warm 28.9°C (84°F), indicating a slight variation from August's 29°C (84.2°F). Balboa registers a steady nighttime temperature averaging a still warm 24.3°C (75.7°F) throughout September.Heat index
The average heat index in September is calculated to be a fiery hot 36°C (96.8°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Research indicates the heat index considers values in shaded locales and with light winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In September, the average relative humidity is 85%.Rainfall
In Balboa, in September, during 28 rainfall days, 182mm (7.17") of precipitation is typically accumulated. In Balboa, during the entire year, the rain falls for 294.6 days and collects up to 1899mm (74.76") of precipitation.Daylight
In September, the average length of the day is 12h and 10min.On the first day of September, sunrise is at 06:09 and sunset at 18:26. On the last day of the month, sunrise is at 06:06 and sunset at 18:09 EST.
Sunshine
In Balboa, the average sunshine in September is 8.1h.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 in Balboa. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 7 during September translates into the following guidance:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Balboa, Panama
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is April (30.5°C).
The month with the lowest average high temperature is November (28.6°C).
- Average low temperature in September: 24.3°C
The month with the highest average low temperature is June (25.2°C).
The coldest month (with the lowest average low temperature) is February (23.8°C).
Average pressure in September
Balboa, 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
Balboa, Panama
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is February (12.7km/h).
The calmest month (with the lowest average wind speed) is September (6.4km/h).
Average humidity in September
Balboa, Panama
- Average humidity in September: 85%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is March (77%).
Average rainfall in September
Balboa, Panama
- Average rainfall in September: 182mm
The wettest month (with the highest rainfall) is July (269mm).
The driest month (with the least rainfall) is February (13mm).
Average rainfall days in September
Balboa, Panama
- Average rainfall days in September: 28 days
The month with the highest number of rainy days is July (30.1 days).
The month with the least rainy days is February (11.3 days).
Average daylight in September /
Average sunshine in September
Balboa, 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 6min
The month with the most sunshine is May (Average sunshine: 9h and 0min).
The month with the least sunshine is November (Average sunshine: 5h and 54min).
Average sunshine days in September
Balboa, Panama
- Average sunshine days in September: 1.8 days
The month with the most sunshine days is March (11.3 days).
The months with the least sunshine days are July and November (0.4 days).
Average UV index in September
Balboa, 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
Balboa, Panama
- Average cloud cover in September: 43
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is February (Cloud cover 39).
Average visibility in September
Balboa, 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).





