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 start of September marks an average high-temperature of a still moderately hot 28.9°C (84°F), hardly distinguishable from the conditions in August. During the month of September, Haswayn anticipates a mean low-temperature of 23.7°C (74.7°F).Heat index
September's average heat index is estimated at a hot 34°C (93.2°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Consider that heat index readings are for situations in the shade and light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
In September, the average relative humidity is 78%.Rainfall
In Haswayn, during September, the rain falls for 3.4 days and regularly aggregates up to 2mm (0.08") of precipitation. Throughout the year, there are 30.1 rainfall days, and 80mm (3.15") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 13min.On the first day of September in Haswayn, sunrise is at 05:18 and sunset at 17:44. On the last day of the month, sunrise is at 05:21 and sunset at 17:21 +03.
Sunshine
In September, the average sunshine is 9.5h.UV index
The months with the highest UV index are March through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 7 translates into these guidelines:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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 much does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index in Haswayn?
What is the UV index reading in September?
Average temperature in September
Haswayn, Yemen
- Average high temperature in September: 28.9°C
The warmest months (with the highest average high temperature) are May and June (31.7°C).
The month with the lowest average high temperature is January (25°C).
- Average low temperature in September: 23.7°C
The month with the highest average low temperature is June (26.3°C).
The coldest month (with the lowest average low temperature) is January (18.2°C).
Average pressure in September
Haswayn, Yemen
- Average pressure in September: 1006.8mbar
The month with the highest atmospheric pressure is January (1016.9mbar).
The month with the lowest atmospheric pressure is July (1001.6mbar).
Average wind speed in September
Haswayn, Yemen
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is July (16km/h).
The calmest month (with the lowest average wind speed) is October (9.2km/h).
Average humidity in September
Haswayn, Yemen
- Average humidity in September: 78%
The month with the highest relative humidity is August (83%).
The month with the lowest relative humidity is December (51%).
Average rainfall in September
Haswayn, Yemen
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is May (44mm).
The driest month (with the least rainfall) is February (0mm).
Average rainfall days in September
Haswayn, Yemen
- Average rainfall days in September: 3.4 days
The month with the highest number of rainy days is July (5.5 days).
The month with the least rainy days is February (0.6 days).
Average daylight in September /
Average sunshine in September
Haswayn, Yemen
- 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 12min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is May (Average sunshine: 12h and 0min).
The month with the least sunshine is November (Average sunshine: 7h and 36min).
Average sunshine days in September
Haswayn, Yemen
- Average sunshine days in September: 24.4 days
The months with the most sunshine days are January and March (29.7 days).
The month with the least sunshine days is July (23.2 days).
Average UV index in September
Haswayn, Yemen
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in September
Haswayn, Yemen
- Average cloud cover in September: 18
The month with the most cloud cover is July (Cloud cover 38).
The month with the least cloud cover is February (Cloud cover 3).
Average visibility in September
Haswayn, Yemen
- 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).
