September weather forecastAnnai, Guyana
September
Weather in September
The transition to September yields a positive shift in Annai, Guyana's weather. The precipitating factors indicating this shift includes the diminishing rainfall figures down to 66mm (2.6"). Consequently, September experiences the least rainfall days, coupled with an uptick in sunshine hours. Consequently, residents enjoy more radiant days, notwithstanding the temperature remaining steady.Temperature
Annai, Guyana, experiences a recorded average high-temperature of a still hot 32.5°C (90.5°F) in September, closely aligned with August's 31.2°C (88.2°F). An average low-temperature of 23.2°C (73.8°F) marks the nights in Annai throughout September.Heat index
The heat index for September is calculated to be a scorching 42°C (107.6°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
In Annai, the average relative humidity in September is 71%.Rainfall
In Annai, in September, it is raining for 20 days, with typically 66mm (2.6") of accumulated precipitation. In Annai, during the entire year, the rain falls for 204.4 days and collects up to 941mm (37.05") of precipitation.Snowfall
September is the only month when snow falls. The month with the most snowfall is September, when snow falls for 0.1 days and typically aggregates up to 1mm (0.04") of snow.Daylight
The average length of the day in September is 12h and 8min.On the first day of September, sunrise is at 05:50 and sunset at 18:01. On the last day of the month, sunrise is at 05:43 and sunset at 17:48 -04.
Sunshine
In Annai, the average sunshine in September is 9.8h.UV index
The months with the highest UV index are January through May, July through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: During September, 7 as the daily maximum UV index converts into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Annai, Guyana
- Average high temperature in September: 32.5°C
The warmest month (with the highest average high temperature) is March (34.5°C).
The months with the lowest average high temperature are June and July (30°C).
- Average low temperature in September: 23.2°C
The month with the highest average low temperature is April (24°C).
The coldest month (with the lowest average low temperature) is July (22.2°C).
Average pressure in September
Annai, Guyana
- Average pressure in September: 1011.2mbar
The month with the highest atmospheric pressure is July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in September
Annai, Guyana
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is February (16.3km/h).
The calmest month (with the lowest average wind speed) is July (7.2km/h).
Average humidity in September
Annai, Guyana
- Average humidity in September: 71%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is March (59%).
Average rainfall in September
Annai, Guyana
- Average rainfall in September: 66mm
The wettest month (with the highest rainfall) is June (186mm).
The driest month (with the least rainfall) is January (9mm).
Average rainfall days in September
Annai, Guyana
- Average rainfall days in September: 20 days
The month with the highest number of rainy days is July (27.8 days).
The month with the least rainy days is January (6 days).
Average snowfall in September
Annai, Guyana
- Average snowfall in September: 1mm
The month with the highest snowfall is September (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).
Average snowfall days in September
Annai, Guyana
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Annai, Guyana
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 9h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 48min).
Average sunshine days in September
Annai, Guyana
- Average sunshine days in September: 7.2 days
The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is June (1.9 days).
Average UV index in September
Annai, Guyana
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is June (UV index 6).
Average cloud cover in September
Annai, Guyana
- Average cloud cover in September: 30
The month with the most cloud cover is May (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Annai, Guyana
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).
