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
September, with an average high of 29.1°C (84.4°F) and a low of 27.6°C (81.7°F), signifies the warmest month of the year.Heat index
For September, the heat index is calculated to be a tropical 34°C (93.2°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In September, the average relative humidity is 76%.Rainfall
September is the month with the most rainfall in Mero. Rain falls for 20 days and accumulates 82mm (3.23") of precipitation.Daylight
In Mero, the average length of the day in September is 12h and 13min.On the first day of the month, sunrise is at 05:53 and sunset at 18:17. On the last day of September, in Mero, sunrise is at 05:55 and sunset at 17:55 AST.
Sunshine
The months with the most sunshine are August and September, with an average of 10.1h of sunshine.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Mero are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 7 during September translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest in Mero?
Is it hot in Mero during September?
What is the average humidity in September in Mero?
What is the wettest month in Mero?
How much does it rain in Mero in September?
What is the average length of the day in September in Mero?
When are sunrise and sunset in September in Mero?
What are the months with the most sunshine in Mero?
How long on average sun shines in September in Mero?
What are the months with the highest UV index in Mero?
What are the months with the lowest UV index in Mero?
How high is the UV index in September in Mero?
Average temperature in September
Mero, Dominica
- Average high temperature in September: 29.1°C
The warmest month (with the highest average high temperature) is September (29.1°C).
The month with the lowest average high temperature is January (26.2°C).
- Average low temperature in September: 27.6°C
The month with the highest average low temperature is September (27.6°C).
The coldest month (with the lowest average low temperature) is February (24.8°C).
Average pressure in September
Mero, Dominica
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is June (1015.7mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).
Average wind speed in September
Mero, Dominica
- Average wind speed in September: 19.8km/h
The windiest month (with the highest average wind speed) is January (26.1km/h).
The calmest month (with the lowest average wind speed) is October (19.3km/h).
Average humidity in September
Mero, Dominica
- Average humidity in September: 76%
The months with the highest relative humidity are May, June, July, August and November (77%).
The month with the lowest relative humidity is February (74%).
Average rainfall in September
Mero, Dominica
- Average rainfall in September: 82mm
The wettest month (with the highest rainfall) is September (82mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in September
Mero, Dominica
- Average rainfall days in September: 20 days
The month with the highest number of rainy days is May (22 days).
The month with the least rainy days is March (16.2 days).
Average daylight in September /
Average sunshine in September
Mero, Dominica
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 10h and 1min
The months with the most sunshine are August and September (Average sunshine: 10h and 6min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).
Average sunshine days in September
Mero, Dominica
- Average sunshine days in September: 6.9 days
The month with the most sunshine days is March (7.9 days).
The month with the least sunshine days is July (4.2 days).
Average UV index in September
Mero, Dominica
- 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
Mero, Dominica
- Average cloud cover in September: 38
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is February (Cloud cover 34).
Average visibility in September
Mero, Dominica
- 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).
Mero, Dominica
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