September weather forecastNamai, Nepal
September
Weather in September
September, the first month of the autumn in Namai, is also a hot month, with an average temperature ranging between min 24.8°C (76.6°F) and max 33.7°C (92.7°F).Temperature
As Namai transitions into September, the average high-temperature stands at a still tropical 33.7°C (92.7°F), offering little variation from the preceding month. In Namai, September nights cool down to an average of 24.8°C (76.6°F).Heat index
September's mean heat index is evaluated at a life-threatening hot 46°C (114.8°F). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. 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.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 71%.Rainfall
In Namai, during September, the rain falls for 15.1 days and regularly aggregates up to 85mm (3.35") of precipitation. In Namai, during the entire year, the rain falls for 89.1 days and collects up to 542mm (21.34") of precipitation.Daylight
The average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 5:53 am and sunset at 6:35 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 6:02 pm +0545.
Sunshine
In September, the average sunshine is 9.9h.UV index
In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 7 in September translates into this advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Namai, Nepal
- Average high temperature in September: 33.7°C
The warmest month (with the highest average high temperature) is May (41.6°C).
The month with the lowest average high temperature is January (22.9°C).
- Average low temperature in September: 24.8°C
The month with the highest average low temperature is June (29.9°C).
The coldest month (with the lowest average low temperature) is January (10.1°C).
Average pressure in September
Namai, Nepal
- Average pressure in September: 1004.6mbar
The month with the highest atmospheric pressure is January (1016.1mbar).
The month with the lowest atmospheric pressure is June (998.7mbar).
Average wind speed in September
Namai, Nepal
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is July (11.7km/h).
The calmest month (with the lowest average wind speed) is October (6.1km/h).
Average humidity in September
Namai, Nepal
- Average humidity in September: 71%
The months with the highest relative humidity are August and September (71%).
The month with the lowest relative humidity is April (24%).
Average rainfall in September
Namai, Nepal
- Average rainfall in September: 85mm
The wettest month (with the highest rainfall) is July (194mm).
The driest month (with the least rainfall) is November (0mm).
Average rainfall days in September
Namai, Nepal
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is November (0.3 days).
Average daylight in September /
Average sunshine in September
Namai, Nepal
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 9h and 54min
The month with the most sunshine is May (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 18min).
Average sunshine days in September
Namai, Nepal
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is December (29.7 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Namai, Nepal
- Average UV index in September: 7
The months with the highest UV index are April, May and June (UV index 8).
The months with the lowest UV index are January, November and December (UV index 5).
Average cloud cover in September
Namai, Nepal
- Average cloud cover in September: 33
The month with the most cloud cover is July (Cloud cover 46).
The month with the least cloud cover is November (Cloud cover 5).
Average visibility in September
Namai, Nepal
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).





