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
September
Weather in September
Temperature
In Half Way Tree, temperatures reach their average annual highs in September, measuring 28.7°C (83.7°F) and a minimum average of 27.7°C (81.9°F).Heat index
Throughout September, the heat index is estimated at a tropical 33°C (91.4°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
The average relative humidity in September in Half Way Tree is 77%.Rainfall
In Half Way Tree, Saint Kitts and Nevis, in September, during 18.3 rainfall days, 50mm (1.97") of precipitation is typically accumulated. Throughout the year, there are 198.3 rainfall days, and 386mm (15.2") of precipitation is accumulated.Daylight
In Half Way Tree, the average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 05:57 and sunset at 18:24. On the last day of September, sunrise is at 06:01 and sunset at 18:00 AST.
Sunshine
In September, the average sunshine in Half Way Tree is 10.1h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Half Way Tree, Saint Kitts and Nevis, are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Half Way Tree?
How hot does it get in Half Way Tree in September?
What is the average humidity in September in Half Way Tree?
How many days does it rain in September in Half Way Tree?
How many hours of daylight does Half Way Tree have in September?
What time are sunrise and sunset in September in Half Way Tree?
How long on average sun shines in September in Half Way Tree?
What is the month with the highest UV index in Half Way Tree?
What are the months with the lowest UV index in Half Way Tree?
What is the UV index reading in September in Half Way Tree?
Average temperature in September
Half Way Tree, Saint Kitts and Nevis
- Average high temperature in September: 28.7°C
The warmest month (with the highest average high temperature) is September (28.7°C).
The month with the lowest average high temperature is March (25.8°C).
- Average low temperature in September: 27.7°C
The month with the highest average low temperature is October (27.8°C).
The coldest month (with the lowest average low temperature) is March (24.9°C).
Average pressure in September
Half Way Tree, Saint Kitts and Nevis
- Average pressure in September: 1013.2mbar
The months with the highest atmospheric pressure are January and June (1016.2mbar).
The months with the lowest atmospheric pressure are October and November (1012.5mbar).
Average wind speed in September
Half Way Tree, Saint Kitts and Nevis
- Average wind speed in September: 20.4km/h
The windiest month (with the highest average wind speed) is July (26.3km/h).
The calmest month (with the lowest average wind speed) is October (19.6km/h).
Average humidity in September
Half Way Tree, Saint Kitts and Nevis
- Average humidity in September: 77%
The months with the highest relative humidity are May, June, July and August (78%).
The months with the lowest relative humidity are January, February, March and December (75%).
Average rainfall in September
Half Way Tree, Saint Kitts and Nevis
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is October (51mm).
The driest month (with the least rainfall) is February (15mm).
Average rainfall days in September
Half Way Tree, Saint Kitts and Nevis
- Average rainfall days in September: 18.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (12.6 days).
Average daylight in September /
Average sunshine in September
Half Way Tree, Saint Kitts and Nevis
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Half Way Tree, Saint Kitts and Nevis
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is June (11.2 days).
The month with the least sunshine days is May (7.6 days).
Average UV index in September
Half Way Tree, Saint Kitts and Nevis
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Half Way Tree, Saint Kitts and Nevis
- Average cloud cover in September: 37
The months with the most cloud cover are May, June and July (Cloud cover 40).
The month with the least cloud cover is February (Cloud cover 32).
Average visibility in September
Half Way Tree, Saint Kitts and Nevis
- 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).
