September weather forecastLong Napir, Malaysia
September
Weather in September
The first month of the autumn, September, is still a tropical month in Long Napir, Malaysia, with an average temperature varying between 19.6°C (67.3°F) and 30.7°C (87.3°F).Temperature
September is the month when Long Napir experiences its warmest temperatures, averaging a high of 30.7°C (87.3°F) and a low of 19.6°C (67.3°F).Heat index
The heat index for September is evaluated at a scorching 40°C (104°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. 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 remain especially vital for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The months with the lowest humidity in Long Napir are July through September, with an average relative humidity of 81%.Rainfall
September is the month with the least rainfall in Long Napir, Malaysia. Rain falls for 26 days and accumulates 107mm (4.21") of precipitation.Daylight
The average length of the day in September is 12h and 8min.On the first day of September, sunrise is at 6:13 am and sunset at 6:25 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 6:11 pm +08.
Sunshine
In Long Napir, the average sunshine in September is 7.9h.UV index
January, March through December, with an average maximum UV index of 6, are months with the highest UV index in Long Napir. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Guard against overexposure. Protection from sun-induced harm is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Long Napir, Malaysia
- Average high temperature in September: 30.7°C
The warmest month (with the highest average high temperature) is September (30.7°C).
The month with the lowest average high temperature is January (28.7°C).
- Average low temperature in September: 19.6°C
The month with the highest average low temperature is May (20.1°C).
The coldest month (with the lowest average low temperature) is July (19.1°C).
Average pressure in September
Long Napir, Malaysia
- Average pressure in September: 1010.7mbar
The month with the highest atmospheric pressure is March (1011mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in September
Long Napir, Malaysia
- Average wind speed in September: 3.4km/h
The windiest months (with the highest average wind speed) are July, August, September and October (3.4km/h).
The calmest month (with the lowest average wind speed) is November (3.1km/h).
Average humidity in September
Long Napir, Malaysia
- Average humidity in September: 81%
The months with the highest relative humidity are January, November and December (87%).
The months with the lowest relative humidity are July, August and September (81%).
Average rainfall in September
Long Napir, Malaysia
- Average rainfall in September: 107mm
The wettest month (with the highest rainfall) is April (296mm).
The driest month (with the least rainfall) is September (107mm).
Average rainfall days in September
Long Napir, Malaysia
- Average rainfall days in September: 26 days
The month with the highest number of rainy days is December (30 days).
The month with the least rainy days is June (23.8 days).
Average daylight in September /
Average sunshine in September
Long Napir, Malaysia
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 24min).
Average sunshine days in September
Long Napir, Malaysia
- Average sunshine days in September: 3.5 days
The month with the most sunshine days is June (4.5 days).
The month with the least sunshine days is November (0.6 days).
Average UV index in September
Long Napir, Malaysia
- Average UV index in September: 6
The months with the highest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 6).
The month with the lowest UV index is February (UV index 5).
Average cloud cover in September
Long Napir, Malaysia
- Average cloud cover in September: 50
The months with the most cloud cover are January and November (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 48).
Average visibility in September
Long Napir, Malaysia
- Average visibility in September: 7km
The months with the highest visibility are May, June, July, August, September and October (7km).
The months with the lowest visibility are January, February, March, April, November and December (6km).
