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 Pomona, temperatures reach their average annual highs in September, measuring 33.1°C (91.6°F) and a minimum average of 22.9°C (73.2°F).Heat index
September's heat index is estimated at a life-threatening hot 48°C (118.4°F). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.One should consider that heat index numbers are for shaded settings and light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 78%.Rainfall
September is the month with the least rainfall in Pomona. Rain falls for 21 days and accumulates 55mm (2.17") of precipitation.Daylight
The average length of the day in September in Pomona is 12h and 10min.On the first day of September in Pomona, sunrise is at 05:46 and sunset at 18:01. On the last day of the month, sunrise is at 05:41 and sunset at 17:45 -04.
Sunshine
In September, the average sunshine in Pomona is 9h.UV index
March, April, July through November, with an average maximum UV index of 7, are months with the highest UV index in Pomona. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest in Pomona?
How hot does it get in Pomona in September?
What are the least humid months in Pomona?
What is the average humidity in September in Pomona?
What is the driest month in Pomona?
How much does it rain in Pomona in September?
What is the average length of the day in September in Pomona?
What time are sunrise and sunset in September in Pomona?
How many hours of sunshine does Pomona have in September?
What is the month with the highest UV index in Pomona?
How high is the UV index in September in Pomona?
Average temperature in September
Pomona, Guyana
- Average high temperature in September: 33.1°C
The warmest month (with the highest average high temperature) is September (33.1°C).
The month with the lowest average high temperature is January (29.3°C).
- Average low temperature in September: 22.9°C
The month with the highest average low temperature is October (23.5°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).
Average pressure in September
Pomona, Guyana
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is June (1013.3mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in September
Pomona, Guyana
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is March (7.3km/h).
The calmest months (with the lowest average wind speed) are July and August (5.1km/h).
Average humidity in September
Pomona, Guyana
- Average humidity in September: 78%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are September and October (78%).
Average rainfall in September
Pomona, Guyana
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is June (167mm).
The driest month (with the least rainfall) is September (55mm).
Average rainfall days in September
Pomona, Guyana
- Average rainfall days in September: 21 days
The month with the highest number of rainy days is December (29.1 days).
The month with the least rainy days is August (20.8 days).
Average daylight in September /
Average sunshine in September
Pomona, Guyana
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Pomona, Guyana
- Average sunshine days in September: 6.2 days
The month with the most sunshine days is August (8.5 days).
The month with the least sunshine days is December (0.3 days).
Average UV index in September
Pomona, Guyana
- Average UV index in September: 7
The months with the highest UV index are March, April, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, May, June and December (UV index 6).
Average cloud cover in September
Pomona, Guyana
- Average cloud cover in September: 31
The month with the most cloud cover is May (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in September
Pomona, Guyana
- Average visibility in September: 8km
The months with the highest visibility are March and April (9km).
The months with the lowest visibility are June and July (7km).
