September weather forecastElia, Guinea-Bissau
September
Weather in September
The first month of the autumn, September, is still a hot month in Elia, Guinea-Bissau, with an average temperature varying between 24.5°C (76.1°F) and 31.2°C (88.2°F).Temperature
September's weather records an average high-temperature of a still tropical 31.2°C (88.2°F), showing little deviation from August. Elia throughout September, records an average low-temperature of 24.5°C (76.1°F).Heat index
The heat index value during September is evaluated at an extremely hot 42°C (107.6°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Remember that heat index calculations are made for conditions in the shade with light wind. 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 'real feel' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
August and September, with an average relative humidity of 81%, are the most humid months.Rainfall
In Elia, in September, it is raining for 23.2 days, with typically 133mm (5.24") of accumulated precipitation. In Elia, during the entire year, the rain falls for 107.1 days and collects up to 617mm (24.29") of precipitation.Daylight
In September, the average length of the day is 12h and 11min.On the first day of September in Elia, sunrise is at 06:54 and sunset at 19:15. On the last day of the month, sunrise is at 06:54 and sunset at 18:56 GMT.
Sunshine
The average sunshine in September in Elia, Guinea-Bissau, is 7.5h.UV index
January through July, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 7 during September translates into the following directions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Elia, Guinea-Bissau
- Average high temperature in September: 31.2°C
The warmest months (with the highest average high temperature) are March and April (38.7°C).
The month with the lowest average high temperature is August (30.3°C).
- Average low temperature in September: 24.5°C
The month with the highest average low temperature is June (25.3°C).
The coldest month (with the lowest average low temperature) is January (20.6°C).
Average pressure in September
Elia, Guinea-Bissau
- Average pressure in September: 1012.1mbar
The month with the highest atmospheric pressure is July (1012.7mbar).
The month with the lowest atmospheric pressure is April (1010.1mbar).
Average wind speed in September
Elia, Guinea-Bissau
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is February (13.3km/h).
The calmest month (with the lowest average wind speed) is October (8.1km/h).
Average humidity in September
Elia, Guinea-Bissau
- Average humidity in September: 81%
The months with the highest relative humidity are August and September (81%).
The month with the lowest relative humidity is January (22%).
Average rainfall in September
Elia, Guinea-Bissau
- Average rainfall in September: 133mm
The wettest month (with the highest rainfall) is August (228mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).
Average rainfall days in September
Elia, Guinea-Bissau
- Average rainfall days in September: 23.2 days
The month with the highest number of rainy days is August (27.6 days).
The month with the least rainy days is January (0.1 days).
Average daylight in September /
Average sunshine in September
Elia, Guinea-Bissau
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 7h and 30min
The months with the most sunshine are March, April and May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 0min).
Average sunshine days in September
Elia, Guinea-Bissau
- Average sunshine days in September: 5 days
The month with the most sunshine days is January (30.8 days).
The month with the least sunshine days is August (2.3 days).
Average UV index in September
Elia, Guinea-Bissau
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, September, October, November and December (UV index 7).
The month with the lowest UV index is August (UV index 6).
Average cloud cover in September
Elia, Guinea-Bissau
- Average cloud cover in September: 44
The month with the most cloud cover is August (Cloud cover 56).
The month with the least cloud cover is April (Cloud cover 6).
Average visibility in September
Elia, Guinea-Bissau
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
