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
Weather in September
Temperature
In September, Nannilam experiences a minor shift in meteorological conditions with average high-temperatures marked at a still hot 33.2°C (91.8°F), closely mirroring the climate in August. Throughout September, the nighttime temperature averages to a moderately hot 26.5°C (79.7°F).Heat index
September's heat index is estimated at an extremely hot 44°C (111.2°F). Mind: Heat cramps along with heat exhaustion are anticipated. Heatstroke can develop with continued physical activity.Research indicates the heat index considers values in shaded locales and with light winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. 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.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
In Nannilam, the average relative humidity in September is 69%.Rainfall
In September, the rain falls for 18.4 days. Throughout September, 38mm (1.5") of precipitation is accumulated. Throughout the year, there are 158.6 rainfall days, and 373mm (14.69") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 11min.On the first day of the month, sunrise is at 6:01 am and sunset at 6:21 pm. On the last day of September, in Nannilam, sunrise is at 6:00 am and sunset at 6:02 pm IST.
Sunshine
In Nannilam, the average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index in Nannilam is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 7 in September leads to these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. 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. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
How hot is it in Nannilam in September?
What is the average humidity in September in Nannilam?
How much does it rain in Nannilam in September?
How many hours of daylight does Nannilam have in September?
When is the sunrise / sunset in September in Nannilam?
How many hours of sunshine does Nannilam have in September?
How high is the UV index in September in Nannilam?
Average temperature in September
Nannilam, India
- Average high temperature in September: 33.2°C
The warmest month (with the highest average high temperature) is May (36.3°C).
The month with the lowest average high temperature is January (28.2°C).
- Average low temperature in September: 26.5°C
The month with the highest average low temperature is May (28.8°C).
The coldest month (with the lowest average low temperature) is January (22.3°C).
Average pressure in September
Nannilam, India
- Average pressure in September: 1007.3mbar
The month with the highest atmospheric pressure is January (1013.1mbar).
The month with the lowest atmospheric pressure is June (1005.3mbar).
Average wind speed in September
Nannilam, India
- Average wind speed in September: 14.3km/h
The windiest month (with the highest average wind speed) is June (18.5km/h).
The calmest month (with the lowest average wind speed) is October (12km/h).
Average humidity in September
Nannilam, India
- Average humidity in September: 69%
The months with the highest relative humidity are November and December (81%).
The month with the lowest relative humidity is June (59%).
Average rainfall in September
Nannilam, India
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is February (5mm).
Average rainfall days in September
Nannilam, India
- Average rainfall days in September: 18.4 days
The month with the highest number of rainy days is October (20.7 days).
The month with the least rainy days is February (4.8 days).
Average daylight in September /
Average sunshine in September
Nannilam, India
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is May (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Nannilam, India
- Average sunshine days in September: 9.2 days
The month with the most sunshine days is March (24.2 days).
The month with the least sunshine days is October (8 days).
Average UV index in September
Nannilam, India
- Average UV index in September: 7
The months with the highest UV index are April, May, June and July (UV index 8).
The months with the lowest UV index are January, October and December (UV index 6).
Average cloud cover in September
Nannilam, India
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is March (Cloud cover 15).
Average visibility in September
Nannilam, India
- 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).
Nannilam, India
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