September weather forecastBibala, Angola
September
Weather in September
September brings a further increase in rainfall, rising to 22mm (0.87"), signifying the end of the dry spell in Bibala. The month experiences a rise in humidity and cloud cover as well. Despite these changes, temperatures remain fairly consistent, ensuring a comfortable experience. Wind speed begins to scale down slowly from the peak in the dry months. The progression of these parameters marks September as the transition phase towards the upcoming wet season.Temperature
In Bibala, the highest average temperatures are observed in September, with a high of 29.6°C (85.3°F) and a low of 13.7°C (56.7°F).Heat index
The heat index value for September is calculated to be a tropical 30°C (86°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In Bibala, the average relative humidity in September is 48%.Rainfall
In September, in Bibala, the rain falls for 5.2 days. Throughout September, 22mm (0.87") of precipitation is accumulated. Throughout the year, in Bibala, Angola, there are 170.5 rainfall days, and 1898mm (74.72") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 1min.On the first day of the month, sunrise is at 06:11 and sunset at 18:01. On the last day of September, sunrise is at 05:49 and sunset at 18:03 WAT.
Sunshine
The average sunshine in September is 10.9h.UV index
The months with the highest UV index are August and September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 6 during September translates into these guidelines:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bibala, Angola
- Average high temperature in September: 29.6°C
The warmest month (with the highest average high temperature) is September (29.6°C).
The months with the lowest average high temperature are January and March (23.3°C).
- Average low temperature in September: 13.7°C
The month with the highest average low temperature is November (16.5°C).
The coldest months (with the lowest average low temperature) are June and July (10.4°C).
Average pressure in September
Bibala, Angola
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is July (1016mbar).
The months with the lowest atmospheric pressure are February and November (1011.2mbar).
Average wind speed in September
Bibala, Angola
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is July (7.9km/h).
The calmest month (with the lowest average wind speed) is February (4.9km/h).
Average humidity in September
Bibala, Angola
- Average humidity in September: 48%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is August (38%).
Average rainfall in September
Bibala, Angola
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is March (366mm).
The driest months (with the least rainfall) are June and July (0mm).
Average rainfall days in September
Bibala, Angola
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is March (26.7 days).
The months with the least rainy days are June and July (0.1 days).
Average daylight in September /
Average sunshine in September
Bibala, Angola
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in September: 10h and 54min
The month with the most sunshine is October (Average sunshine: 11h and 36min).
The month with the least sunshine is March (Average sunshine: 7h and 0min).
Average sunshine days in September
Bibala, Angola
- Average sunshine days in September: 23.7 days
The month with the most sunshine days is July (30.9 days).
The month with the least sunshine days is March (3.7 days).
Average UV index in September
Bibala, Angola
- Average UV index in September: 6
The months with the highest UV index are August and September (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, October, November and December (UV index 5).
Average cloud cover in September
Bibala, Angola
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are June and July (Cloud cover 2).
Average visibility in September
Bibala, Angola
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January and March (7km).
