September weather forecastLongpi, India

September

Weather in September

September, the last month of the rainy (monsoon) season in Longpi, is another warm month, with an average temperature fluctuating between 18.4°C (65.1°F) and 27.5°C (81.5°F).

Temperature

The transition from August to September brings an average high-temperature of a still warm 27.5°C (81.5°F), barely different from August's 27.3°C (81.1°F). During the month of September, an average temperature of 18.4°C (65.1°F) is noted during the nights.

Heat index

September's heat index is estimated at a hot 32°C (89.6°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

In Longpi, the average relative humidity in September is 88%.

Rainfall

In Longpi, in September, during 25.3 rainfall days, 147mm (5.79") of precipitation is typically accumulated. In Longpi, India, during the entire year, the rain falls for 195 days and collects up to 1147mm (45.16") of precipitation.

Daylight

In Longpi, the average length of the day in September is 12h and 18min.
On the first day of September, sunrise is at 4:57 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 5:08 am and sunset at 5:04 pm IST.

Sunshine

In Longpi, India, the average sunshine in September is 7h.

UV index

May, June, August and September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

The high-temperature, in September, in Longpi, is 27.5°C (81.5°F), while the low-temperature averages to 18.4°C (65.1°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 32°C (89.6°F).

In Longpi, the average relative humidity in September is 88%.

In Longpi, India, in September, during 25.3 rainfall days, 147mm (5.79") of precipitation is typically accumulated.

The average day length in September in Longpi, India, is 12h and 18min.

In September, on the first day of the month, sunrise is at 4:57 am and sunset at 5:35 pm. On the last day of the month, in Longpi, sunrise is at 5:08 am and sunset at 5:04 pm IST.

In Longpi, the average sunshine duration in September is 7h.

The months with the highest UV index in Longpi, India, are May, June, August and September, with an average maximum UV index of 6.

In Longpi, India, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Longpi, India

  • Average high temperature in September: 27.5°C

The warmest months (with the highest average high temperature) are April and May (29.4°C).
The month with the lowest average high temperature is January (21.5°C).

  • Average low temperature in September: 18.4°C

The month with the highest average low temperature is July (20.3°C).
The coldest month (with the lowest average low temperature) is January (5.8°C).

Average pressure in September
Longpi, India

  • Average pressure in September: 1007.3mbar

The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is July (1003.2mbar).

Average wind speed in September
Longpi, India

  • Average wind speed in September: 3.4km/h

The windiest month (with the highest average wind speed) is March (4.9km/h).
The calmest month (with the lowest average wind speed) is December (3.2km/h).

Average humidity in September
Longpi, India

  • Average humidity in September: 88%

The month with the highest relative humidity is July (91%).
The month with the lowest relative humidity is March (57%).

Average rainfall in September
Longpi, India

  • Average rainfall in September: 147mm

The wettest month (with the highest rainfall) is July (253mm).
The driest months (with the least rainfall) are January and February (8mm).

Average rainfall days in September
Longpi, India

  • Average rainfall days in September: 25.3 days

The month with the highest number of rainy days is July (29.2 days).
The month with the least rainy days is February (2.9 days).

Average daylight in September /
Average sunshine in September
Longpi, India

  • Average daylight in September: 12h and 18min

The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in September: 7h and 0min

The month with the most sunshine is February (Average sunshine: 9h and 42min).
The month with the least sunshine is August (Average sunshine: 6h and 12min).

Average sunshine days in September
Longpi, India

  • Average sunshine days in September: 3.4 days

The month with the most sunshine days is January (26.6 days).
The month with the least sunshine days is June (1.3 days).

Average UV index in September
Longpi, India

  • Average UV index in September: 6

The months with the highest UV index are May, June, August and September (UV index 6).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in September
Longpi, India

  • Average cloud cover in September: 63

The month with the most cloud cover is July (Cloud cover 70).
The months with the least cloud cover are February and March (Cloud cover 16).

Average visibility in September
Longpi, India

  • Average visibility in September: 6km

The month with the highest visibility is March (10km).
The months with the lowest visibility are July, August, September, October and November (6km).