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 in Santiago De Los Caballeros, Dominican Republic, experiences an average high-temperature of a still hot 31.1°C (88°F), barely different from August's 31.7°C (89.1°F). The average nighttime temperature lowers to an agreeable 21°C (69.8°F) throughout September.Heat index
The average heat index in September is estimated at a blisteringly hot 41°C (105.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
The average relative humidity in September is 78%.Rainfall
September is the month with the most rainfall. Rain falls for 22.1 days and accumulates 101mm (3.98") of precipitation.Daylight
In September, the average length of the day is 12h and 14min.On the first day of September in Santiago De Los Caballeros, Dominican Republic, sunrise is at 06:27 and sunset at 18:57. On the last day of the month, sunrise is at 06:33 and sunset at 18:31 AST.
Sunshine
The average sunshine in September is 9.3h.UV index
January through May, August through December, with an average maximum UV index of 6, are months with the lowest UV index in Santiago De Los Caballeros, Dominican Republic. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Santiago De Los Caballeros in September?
What is the average humidity in September in Santiago De Los Caballeros?
What is the rainiest month in Santiago De Los Caballeros?
How much does it rain in Santiago De Los Caballeros in September?
How many hours of daylight does Santiago De Los Caballeros have in September?
When are sunrise and sunset in September in Santiago De Los Caballeros?
How long on average sun shines in September in Santiago De Los Caballeros?
What are the months with the lowest UV index in Santiago De Los Caballeros?
What is the UV index intensity in September in Santiago De Los Caballeros?
Average temperature in September
Santiago De Los Caballeros, Dominican Republic
- Average high temperature in September: 31.1°C
The warmest month (with the highest average high temperature) is August (31.7°C).
The month with the lowest average high temperature is December (26.9°C).
- Average low temperature in September: 21°C
The month with the highest average low temperature is July (21.4°C).
The coldest months (with the lowest average low temperature) are January and February (17.5°C).
Average pressure in September
Santiago De Los Caballeros, Dominican Republic
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is January (1017.3mbar).
The month with the lowest atmospheric pressure is October (1012.9mbar).
Average wind speed in September
Santiago De Los Caballeros, Dominican Republic
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is July (9.8km/h).
The calmest month (with the lowest average wind speed) is November (5.8km/h).
Average humidity in September
Santiago De Los Caballeros, Dominican Republic
- Average humidity in September: 78%
The months with the highest relative humidity are November and December (83%).
The month with the lowest relative humidity is July (74%).
Average rainfall in September
Santiago De Los Caballeros, Dominican Republic
- Average rainfall in September: 101mm
The wettest month (with the highest rainfall) is September (101mm).
The driest months (with the least rainfall) are January and December (28mm).
Average rainfall days in September
Santiago De Los Caballeros, Dominican Republic
- Average rainfall days in September: 22.1 days
The month with the highest number of rainy days is October (22.5 days).
The month with the least rainy days is January (13.3 days).
Average daylight in September /
Average sunshine in September
Santiago De Los Caballeros, Dominican Republic
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 24min).
The months with the least sunshine are March and November (Average sunshine: 8h and 0min).
Average sunshine days in September
Santiago De Los Caballeros, Dominican Republic
- Average sunshine days in September: 5.5 days
The month with the most sunshine days is June (13.5 days).
The month with the least sunshine days is October (3.5 days).
Average UV index in September
Santiago De Los Caballeros, 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
Santiago De Los Caballeros, Dominican Republic
- Average cloud cover in September: 26
The months with the most cloud cover are March and November (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in September
Santiago De Los Caballeros, Dominican Republic
- Average visibility in September: 9km
The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January and November (7km).
Santiago De Los Caballeros, Dominican Republic
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