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
During September, the average high-temperature is a still warm 28.1°C (82.6°F), maintaining a close resemblance to that of the preceding month. Gwaunatafu's September nights observe a minor shift from the daytime temperatures, resulting in an average dip to a still warm 25.8°C (78.4°F).Heat index
The heat index in September is evaluated at a hot 33°C (91.4°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. 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.
Humidity
The average relative humidity in September in Gwaunatafu is 81%.Rainfall
In Gwaunatafu, in September, it is raining for 24.3 days, with typically 122mm (4.8") of accumulated precipitation. In Gwaunatafu, during the entire year, the rain falls for 329.1 days and collects up to 2481mm (97.68") of precipitation.Daylight
In September, the average length of the day is 12h and 4min.On the first day of September in Gwaunatafu, sunrise is at 06:18 and sunset at 18:15. On the last day of the month, sunrise is at 06:01 and sunset at 18:12 +11.
Sunshine
In Gwaunatafu, Solomon Islands, the average sunshine in September is 8.4h.UV index
The months with the highest UV index are April through September and November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 7 in September leads to these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Gwaunatafu in September?
What is the average humidity in September in Gwaunatafu?
How much does it rain in Gwaunatafu in September?
How many hours of daylight does Gwaunatafu have in September?
What time are sunrise and sunset in September in Gwaunatafu?
How many hours of sunshine does Gwaunatafu have in September?
When is the highest UV index in Gwaunatafu?
How high is the UV index in September in Gwaunatafu?
Average temperature in September
Gwaunatafu, Solomon Islands
- Average high temperature in September: 28.1°C
The warmest months (with the highest average high temperature) are April and May (28.8°C).
The month with the lowest average high temperature is August (27.9°C).
- Average low temperature in September: 25.8°C
The month with the highest average low temperature is May (26.6°C).
The coldest months (with the lowest average low temperature) are August and September (25.8°C).
Average pressure in September
Gwaunatafu, Solomon Islands
- Average pressure in September: 1010.2mbar
The month with the highest atmospheric pressure is August (1010.4mbar).
The month with the lowest atmospheric pressure is January (1006.9mbar).
Average wind speed in September
Gwaunatafu, Solomon Islands
- Average wind speed in September: 14.5km/h
The windiest month (with the highest average wind speed) is July (16.2km/h).
The calmest month (with the lowest average wind speed) is December (8.4km/h).
Average humidity in September
Gwaunatafu, Solomon Islands
- Average humidity in September: 81%
The month with the highest relative humidity is July (82%).
The months with the lowest relative humidity are January, February, March, November and December (79%).
Average rainfall in September
Gwaunatafu, Solomon Islands
- Average rainfall in September: 122mm
The wettest month (with the highest rainfall) is March (305mm).
The driest month (with the least rainfall) is August (118mm).
Average rainfall days in September
Gwaunatafu, Solomon Islands
- Average rainfall days in September: 24.3 days
The month with the highest number of rainy days is March (29.5 days).
The month with the least rainy days is August (24 days).
Average daylight in September /
Average sunshine in September
Gwaunatafu, Solomon Islands
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is November (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).
Average sunshine days in September
Gwaunatafu, Solomon Islands
- Average sunshine days in September: 3 days
The month with the most sunshine days is August (3.8 days).
The months with the least sunshine days are January, March and December (0.5 days).
Average UV index in September
Gwaunatafu, Solomon Islands
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August, September and November (UV index 7).
The months with the lowest UV index are January, February, March, October and December (UV index 6).
Average cloud cover in September
Gwaunatafu, Solomon Islands
- Average cloud cover in September: 42
The month with the most cloud cover is July (Cloud cover 48).
The month with the least cloud cover is November (Cloud cover 40).
Average visibility in September
Gwaunatafu, Solomon Islands
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
Gwaunatafu, Solomon Islands
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