September weather forecastCaca, Angola
September
Weather in September
The first month of the spring, September, is still a hot month in Caca, Angola, with temperature in the range of an average low of 18°C (64.4°F) and an average high of 30.2°C (86.4°F).Temperature
September's weather records an average high-temperature of a still hot 30.2°C (86.4°F), showing little deviation from August. Caca observes a dramatic plunge from daytime highs in September, settling at an average low-temperature of 18°C (64.4°F).Heat index
September's mean heat index is evaluated at a sweltering 36°C (96.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
The average relative humidity in September is 70%.Rainfall
In Caca, Angola, during September, the rain falls for 24.6 days and regularly aggregates up to 82mm (3.23") of precipitation. Throughout the year, in Caca, Angola, there are 261.7 rainfall days, and 1536mm (60.47") of precipitation is accumulated.Daylight
In Caca, the average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:58 and sunset at 17:56. On the last day of the month, sunrise is at 05:42 and sunset at 17:52 WAT.
Sunshine
With an average of 8.6h of sunshine, September has the most sunshine of the year in Caca.UV index
The months with the highest UV index in Caca are April through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 in September translates into these instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Caca, Angola
- Average high temperature in September: 30.2°C
The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is December (24.9°C).
- Average low temperature in September: 18°C
The month with the highest average low temperature is October (18.5°C).
The coldest month (with the lowest average low temperature) is July (15.8°C).
Average pressure in September
Caca, Angola
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is June (1014mbar).
The month with the lowest atmospheric pressure is February (1011.3mbar).
Average wind speed in September
Caca, Angola
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is August (7.9km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).
Average humidity in September
Caca, Angola
- Average humidity in September: 70%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is July (54%).
Average rainfall in September
Caca, Angola
- Average rainfall in September: 82mm
The wettest month (with the highest rainfall) is October (229mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Caca, Angola
- Average rainfall days in September: 24.6 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is July (2.2 days).
Average daylight in September /
Average sunshine in September
Caca, Angola
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is September (Average sunshine: 8h and 36min).
The months with the least sunshine are April and November (Average sunshine: 6h and 18min).
Average sunshine days in September
Caca, Angola
- Average sunshine days in September: 3.7 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is December (0.1 days).
Average UV index in September
Caca, Angola
- Average UV index in September: 6
The months with the highest UV index are April, May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 5).
Average cloud cover in September
Caca, Angola
- Average cloud cover in September: 37
The month with the most cloud cover is December (Cloud cover 73).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
Caca, Angola
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February, March, November and December (6km).





