Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September witnesses a subtle temperature ascent, adjusting from a warm 26.9°C (80.4°F) in August to a tropical 31.4°C (88.5°F). Despite the intense daytime heat, Blantyre sustains a steady low-temperature average of 18.4°C (65.1°F) during September.Heat index
During September, the heat index is computed to be a hot 32°C (89.6°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
September is the least humid month, with an average relative humidity of 45%.Rainfall
The months with the least rainfall are August and September Rain falls for 4.3 days and accumulates 6mm (0.24") of rain.Daylight
The average length of the day in September is 12h and 1min.On the first day of September, sunrise is at 05:45 and sunset at 17:34. On the last day of the month, sunrise is at 05:22 and sunset at 17:36 CAT.
Sunshine
The month with the most sunshine is September, with an average of 9.6h of sunshine.UV index
The months with the highest UV index in Blantyre are September and October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 7 in September leads to these recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the least humid month?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
How many hours of daylight does Blantyre have in September?
When are sunrise and sunset in September?
What month has the most sunshine?
How many hours of sunshine does Blantyre have in September?
What is the month with the highest UV index in Blantyre?
What is the UV index intensity in September?
Average temperature in September
Blantyre, Malawi
- Average high temperature in September: 31.4°C
The warmest month (with the highest average high temperature) is October (32.3°C).
The month with the lowest average high temperature is July (23.1°C).
- Average low temperature in September: 18.4°C
The month with the highest average low temperature is November (21.4°C).
The coldest month (with the lowest average low temperature) is July (13.3°C).
Average pressure in September
Blantyre, Malawi
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is July (1021.4mbar).
The month with the lowest atmospheric pressure is January (1010.5mbar).
Average wind speed in September
Blantyre, Malawi
- Average wind speed in September: 7.5km/h
The windiest month (with the highest average wind speed) is October (8.2km/h).
The calmest month (with the lowest average wind speed) is February (5.6km/h).
Average humidity in September
Blantyre, Malawi
- Average humidity in September: 45%
The month with the highest relative humidity is March (85%).
The month with the lowest relative humidity is September (45%).
Average rainfall in September
Blantyre, Malawi
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is January (358mm).
The driest months (with the least rainfall) are August and September (6mm).
Average rainfall days in September
Blantyre, Malawi
- Average rainfall days in September: 4.3 days
The month with the highest number of rainy days is January (27.9 days).
The month with the least rainy days is September (4.3 days).
Average daylight in September /
Average sunshine in September
Blantyre, Malawi
- 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 12min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is September (Average sunshine: 9h and 36min).
The month with the least sunshine is July (Average sunshine: 6h and 18min).
Average sunshine days in September
Blantyre, Malawi
- Average sunshine days in September: 24.4 days
The month with the most sunshine days is September (24.4 days).
The months with the least sunshine days are January and February (2 days).
Average UV index in September
Blantyre, Malawi
- Average UV index in September: 7
The months with the highest UV index are September and October (UV index 7).
The months with the lowest UV index are April, May, June and July (UV index 5).
Average cloud cover in September
Blantyre, Malawi
- Average cloud cover in September: 16
The months with the most cloud cover are February and April (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in September
Blantyre, Malawi
- Average visibility in September: 10km
The months with the highest visibility are August, September and October (10km).
The months with the lowest visibility are January, February, March and April (7km).
