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
Transitioning into September, Guayacanal experiences an average high-temperature of a still moderately hot 29.3°C (84.7°F), marking a minor shift from the preceding month. During the nights in September, Guayacanal experiences a consistent average temperature of 21°C (69.8°F).Heat index
During September, the heat index is evaluated at a sweltering 35°C (95°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. 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.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
The average relative humidity in September is 77%.Rainfall
In Guayacanal, Dominican Republic, in September, during 22.5 rainfall days, 82mm (3.23") of precipitation is typically accumulated. In Guayacanal, during the entire year, the rain falls for 214.4 days and collects up to 598mm (23.54") of precipitation.Daylight
The average length of the day in September in Guayacanal is 12h and 14min.On the first day of the month, sunrise is at 06:28 and sunset at 18:57. On the last day of September, sunrise is at 06:33 and sunset at 18:32 AST.
Sunshine
The average sunshine in September is 9.5h.UV index
January through May, August through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 6 in September leads to these guidelines:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. 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.
Frequently asked questions
Is it hot in Guayacanal during September?
What is the average humidity in September in Guayacanal?
How much does it rain in Guayacanal in September?
What is the average length of the day in September in Guayacanal?
What time are sunrise and sunset in September in Guayacanal?
How long on average sun shines in September in Guayacanal?
When is the lowest UV index in Guayacanal?
How high is the UV index in September in Guayacanal?
Average temperature in September
Guayacanal, Dominican Republic
- Average high temperature in September: 29.3°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (27.3°C).
- Average low temperature in September: 21°C
The month with the highest average low temperature is August (21.6°C).
The coldest month (with the lowest average low temperature) is January (18.1°C).
Average pressure in September
Guayacanal, Dominican Republic
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is January (1016.7mbar).
The month with the lowest atmospheric pressure is October (1012.7mbar).
Average wind speed in September
Guayacanal, Dominican Republic
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is July (9.5km/h).
The calmest month (with the lowest average wind speed) is October (7.1km/h).
Average humidity in September
Guayacanal, Dominican Republic
- Average humidity in September: 77%
The months with the highest relative humidity are June and October (78%).
The month with the lowest relative humidity is March (73%).
Average rainfall in September
Guayacanal, Dominican Republic
- Average rainfall in September: 82mm
The wettest month (with the highest rainfall) is August (93mm).
The driest month (with the least rainfall) is January (10mm).
Average rainfall days in September
Guayacanal, Dominican Republic
- Average rainfall days in September: 22.5 days
The month with the highest number of rainy days is May (23.9 days).
The month with the least rainy days is February (9.8 days).
Average daylight in September /
Average sunshine in September
Guayacanal, Dominican Republic
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 3min
The months with the most sunshine are January and December (Average sunshine: 9h and 42min).
The month with the least sunshine is April (Average sunshine: 9h and 6min).
Average sunshine days in September
Guayacanal, Dominican Republic
- Average sunshine days in September: 5.1 days
The month with the most sunshine days is December (16.5 days).
The month with the least sunshine days is May (4.4 days).
Average UV index in September
Guayacanal, Dominican Republic
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, March, April, May, August, September, October, November and December (UV index 6).
Average cloud cover in September
Guayacanal, Dominican Republic
- Average cloud cover in September: 22
The months with the most cloud cover are April and May (Cloud cover 28).
The months with the least cloud cover are January and December (Cloud cover 16).
Average visibility in September
Guayacanal, Dominican Republic
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, November and December (10km).
The months with the lowest visibility are May and October (9km).
Guayacanal, Dominican Republic
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