A nuchal translucency ultrasound (commonly called a ânuchal scanâ or âNT scanâ) is an ultrasound performed between 11.5 and 13 weeks 6 days gestation. It is usually part of an assessment called combined first trimester screening.he nuchal translucency is the fluid found at the back of your babyâs head and neck, just beneath the skin. The thickness of this fluid can be precisely measured and this is called the nuchal translucency (or NT) measurement.
Weather in Porto in September. The average maximum daytime temperature in Porto in September is a warm 24Â°C (75Â°F). There are usually 8 hours of bright sunshine each day, which represents 60% of the 12 hours of daylight. The average sea temperature in and around Porto in September is 18Â°C (64Â°F). Expect 62mm (2.4 inches) of rainfall across the whole of September with 8 days with some rain falling. Maximum UV levels will be high (6 UV index) at midday when the skies are clear.
Algarve. Faro weather in in September (Faro, Algarve, Portugal): Still lots of sunshine, still hot, but cloudy days pick up, and some rain moves in. Day temperature hovers at around 26 degrees. The water temperature is now the warmest of all seasons, at a very comfortable average of 22 degrees.he highest daytime temperature in Faro in September 2014 was 30 Â°C. The minimum night temperature was 18 Â°C. Average day and night temperatures in Faro were 26.7Â°C and 20.3 Â°C.