Very warm and humid weather continuing with several thunderstorm days. Drier towards mid-month

Last edited: Sunday, September 25, 2016

September began with a low pressure centre passing to the distant north that brought mainly fair conditions with 9.8 hours of sunshine and a few isolated showers that produced 0.13" of rainfall. The high was 87°F/30°C with a low of 80°F/26°C. The 2nd was an unsettled day with heavy showers and thunderstorms. Winds gusted to 37 knots in association with one of the afternoon showers. There were 0.49" of rain and it was mostly cloudy with just 1.2 hours of sunshine. The temperature rose to 85°F/29°C and fell to 76°F/24°C. Saturday 3rd was dry, although there were some showers in the area throughout the day. There were 9.4 hours of sunshine, with a high of 87°F/30°C and a low of 82°F/28°C. Sunday 4th was largely fair. Despite a few showers in the vicinity, there was no rain and a modest 5 hours of sunshine. The high was 88°F/31°C and the low was 81°F/27°C. A trough from distant Post-Tropical Cyclone Hermine slowly passed through the area Monday 5th and Tuesday 6th, giving breezy conditions with occasional strong winds and a gust to 32 knots on the Tuesday. There were a few thunderstorms Monday morning through afternoon with 0.49" recorded. Monday's high was 87°F/30°C with a low of 77°F/25°C and 7.2 hours of sunshine. Thunderstorms were mainly in the morning hours of Tuesday with 0.70" recorded and a high of 84°F/29°C, a low of 73°F/23°C, and 4.4 hours of sunshine. A ridge of high pressure from the east brought settled and dry conditions on the 7th. The high was 86°F/30°C with a low of 80°F/27°C and 11 hours of sunshine. The 8th and 9th saw a weak ridge of high pressure influencing the area with an influx of moisture advecting across the region, bringing mainly fair conditions with 6.5 hours of sunshine on the 8th and 9.6 hours on the 9th. Showers and thunderstorms were observed in the area both days but no rain was recorded either day. The high on the 8th was 85°F/29°C with a low of 80°F/26°C. The 9th had high of 87°F/30°C with a low of 79°F/26°C. Saturday 10th was a mainly dry and sunny day, with only a trace of rain and 10.2 hours of sunshine. The maximum temperature rose to 88°F/31°C and the minimum fell to 80°F/27°C.
Sunday 11th was a very showery day with thunderstorms on and off throughout. There were 0.78" of precipitation recorded and only 3.6 hours of sunshine. The daytime maximum was 86°F/30°C and the minimum was 77°F/25°C. Despite thunderstorms in the vicinity, only a trace of rain was recorded on Monday 12th. There were 7.6 hours of sunshine; the high was 87°F/30°C and the low was 79°F/26°C. Tuesday 13th was mainly fair with 9.7 hours of sunshine, though a light shower produced 0.01" of rainfall. The high was 85°F/30°C and the low was 80°F/27°C. The 14th continued settled with plenty of sunshine, no rain and decreasing humidity levels. The high was 84°F/29°C with a low of 78°F/26°C and 9.4 hours of sunshine. Conditions remained fine and dry into the 15th as high pressure dominated and northeast breezes maintained the lower humidity. The high was 83°F/28°C with a low of 78°F/25°C and 10.3 hours of sunshine. The 16th saw weak high pressure hold in place, bringing more dry and mainly fair conditions with 3.6 hours of sun. The high was 83°F/28°C with a low of 77°F/25°C. Apart from an isolated shower which delivered 0.01" of rain and an occasional strong breeze, Saturday 17th was mainly fine with 10.4 hours of sunshine. The high was 86°F/30°C and the low was 77°F/25°C. The 18th was a mostly sunny day with 10.2 hours of sunshine. However, there were a few mainly light showers giving 0.03" of precipitation. The high was 85°F/29°C, the low 78°F/25°C. Monday the 19th saw showers in the vicinity throughout the day, however, only a trace of rainfall was recorded. There were 10 hours of sunshine recorded and the max temperature was 87F/30C with a min temperature of 79F/26C. The wind was moderate to strong at times with a gust of 22 knots recorded. Tuesday the 20th was mainly fair with 10.2 hours of sunshine. Evening showers and thunderstorms brought 0.61" of rain. The high was 85F/29C and the low was 75F/24C. Frequent showers and thunderstorms dominated Wednesday the 21st, delivering 1.63" of rain and barely allowing 0.8 hours of sunshine. The high struggled to 83F/28C while rain dropped the low to 74F/23C. Thursday the 22nd began with a few showers which produced 0.75" of rain. Subsidence ahead of approaching Tropical Storm Karl then produced fair weather and 7.5 hours of sunshine. The high was 86F/30C and the low was 74F/23C. On Friday the 23rd Tropical Storm Karl approached from the south. After 2.2 hours of sunshine early, showers and thunderstorms brought 0.82" of rain. The high was 84F/29C and the low was 76F/24C. The 24th saw Tropical Storm Karl pass to our near southeast during the morning. Karl brought cloudy conditions, showers, thunderstorms and tropical storm force winds with storm force gusts across Bermuda. There were 4.7 hours of sunshine and 3.89” of rainfall. Max winds recorded at the airport during T.S. Karl’s passage were 30 knots with gusts to 41 knots. The high was 84F/29C with a low of 75F/24C.

Produced by the Bermuda Weather Service

Unless otherwise stated, all statistical data are based on observations taken at the Bermuda International Airport.