September weather forecastMatthews Ridge, Guyana
September
Weather in September
The first month of the autumn, September, is still a tropical month in Matthews Ridge, Guyana, with an average temperature varying between 24.4°C (75.9°F) and 31.5°C (88.7°F).Temperature
The month of September sees the highest average temperatures, reaching 31.5°C (88.7°F) at the peak and 24.4°C (75.9°F) at the low.Heat index
The heat index value during September is appraised at an extremely hot 42°C (107.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Understand that the heat index values take into account shaded locations and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
The average relative humidity in September in Matthews Ridge is 79%.Rainfall
In Matthews Ridge, in September, it is raining for 23.4 days, with typically 92mm (3.62") of accumulated precipitation. Throughout the year, in Matthews Ridge, there are 305.1 rainfall days, and 1386mm (54.57") of precipitation is accumulated.Daylight
In Matthews Ridge, the average length of the day in September is 12h and 10min.On the first day of the month, sunrise is at 05:52 and sunset at 18:08. On the last day of September, sunrise is at 05:48 and sunset at 17:52 -04.
Sunshine
In September, the average sunshine is 10h.UV index
March through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. 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. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Matthews Ridge, Guyana
- Average high temperature in September: 31.5°C
The warmest month (with the highest average high temperature) is September (31.5°C).
The month with the lowest average high temperature is February (28.7°C).
- Average low temperature in September: 24.4°C
The month with the highest average low temperature is October (24.7°C).
The coldest month (with the lowest average low temperature) is January (22.6°C).
Average pressure in September
Matthews Ridge, Guyana
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is June (1013.3mbar).
The month with the lowest atmospheric pressure is November (1009.9mbar).
Average wind speed in September
Matthews Ridge, Guyana
- Average wind speed in September: 9.1km/h
The windiest month (with the highest average wind speed) is April (11.5km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).
Average humidity in September
Matthews Ridge, Guyana
- Average humidity in September: 79%
The months with the highest relative humidity are July and December (83%).
The months with the lowest relative humidity are March and April (78%).
Average rainfall in September
Matthews Ridge, Guyana
- Average rainfall in September: 92mm
The wettest month (with the highest rainfall) is July (191mm).
The driest month (with the least rainfall) is March (53mm).
Average rainfall days in September
Matthews Ridge, Guyana
- Average rainfall days in September: 23.4 days
The month with the highest number of rainy days is July (29.8 days).
The month with the least rainy days is March (22.1 days).
Average daylight in September /
Average sunshine in September
Matthews Ridge, Guyana
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Matthews Ridge, Guyana
- Average sunshine days in September: 3.1 days
The month with the most sunshine days is March (5.6 days).
The month with the least sunshine days is July (0.3 days).
Average UV index in September
Matthews Ridge, Guyana
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in September
Matthews Ridge, Guyana
- Average cloud cover in September: 27
The month with the most cloud cover is May (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility in September
Matthews Ridge, Guyana
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May and September (10km).
The months with the lowest visibility are June, July, August, October, November and December (9km).
