Product Description. 1  Flex Seal as seen on TV is a rubberized leak sealer that seeps into cracks and holes to seal out air and moisture. When dry, Flex Seal, as seen on TV, is a long-lasting, watertight, paintable, flexible rubber coating that won't sag, drip, crack or peel. It seals out water and lasts for years.
The average high in Antigua is 31ÂºC in September so itâs perfect if you love the heat. Temperatures only drop to 25ÂºC at night so you wonât need to bring many warm clothes. The sea temperatureâs 29ÂºC, so itâs lovely for swimming, while humidityâs very high.
Even though it only happens on an average of 10% of days, temperatures can sometimes rise above 29Â°C and fall below 21Â°C in Antigua in January. The highest temperature ever registered on the island at this time of year is 34Â°C, whilst the lowest temperature ever recorded here during this month is 18Â°C.he average sea temperature in Antigua remains consistently warm throughout the year. In January, itâs 27Â°C which is certainly warm enough to go swimming. Thanks to its tropical climate, Antigua is also relatively humid all-year-round.