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
The arrival of September sees an average high-temperature of a torrid 36.5°C (97.7°F), hardly diverging from August's 33.9°C (93°F). During September, the nighttime temperature averages to a warm 26.9°C (80.4°F).Heat index
The average heat index in September is appraised at an extremely hot 42°C (107.6°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
In Adendema, the average relative humidity in September is 44%.Rainfall
In September, the rain falls for 8.1 days. Throughout September, 17mm (0.67") of precipitation is accumulated. In Adendema, during the entire year, the rain falls for 57.8 days and collects up to 163mm (6.42") of precipitation.Daylight
In September, the average length of the day is 12h and 13min.On the first day of September, sunrise is at 06:19 and sunset at 18:44. On the last day of the month, sunrise is at 06:21 and sunset at 18:22 EAT.
Sunshine
The average sunshine in September is 9.8h.UV index
In September, the average daily maximum UV index is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 8 during September leads to these instructions:
Act with urgency in protecting yourself. Without it, skin and eyes can be harmed in no time. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Adendema have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Adendema, Eritrea
- Average high temperature in September: 36.5°C
The warmest month (with the highest average high temperature) is May (40.3°C).
The month with the lowest average high temperature is January (33.3°C).
- Average low temperature in September: 26.9°C
The month with the highest average low temperature is May (29.7°C).
The coldest month (with the lowest average low temperature) is January (20.3°C).
Average pressure in September
Adendema, Eritrea
- Average pressure in September: 1008mbar
The month with the highest atmospheric pressure is January (1011mbar).
The month with the lowest atmospheric pressure is April (1005.6mbar).
Average wind speed in September
Adendema, Eritrea
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is July (20.3km/h).
The calmest month (with the lowest average wind speed) is October (10.6km/h).
Average humidity in September
Adendema, Eritrea
- Average humidity in September: 44%
The month with the highest relative humidity is August (57%).
The month with the lowest relative humidity is April (21%).
Average rainfall in September
Adendema, Eritrea
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is August (59mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days in September
Adendema, Eritrea
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is August (17.3 days).
The months with the least rainy days are January and December (0 days).
Average daylight in September /
Average sunshine in September
Adendema, Eritrea
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 9h and 5min
The months with the most sunshine are January, February, November and December (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 9h and 6min).
Average sunshine days in September
Adendema, Eritrea
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is January (31 days).
The month with the least sunshine days is August (11 days).
Average UV index in September
Adendema, Eritrea
- Average UV index in September: 8
The month with the highest UV index is May (UV index 9).
The months with the lowest UV index are January, July, November and December (UV index 7).
Average cloud cover in September
Adendema, Eritrea
- Average cloud cover in September: 15
The month with the most cloud cover is August (Cloud cover 32).
The month with the least cloud cover is January (Cloud cover 1).
Average visibility in September
Adendema, Eritrea
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
