Very large breeds may only have a heat cycle once every 12-18 months. In most giant breeds (Great Danes, Irish Wolfhounds, St Bernard's, etc.) an oestrus cycle every twelve months is common.
Ho Chih Minh City. April is the month with the warmest average high temperature in Ho Chi Ming City. The average high temperature for the month is 95 degrees, and the average low is 79 degrees. December has the lowest temperature on average in Ho Chi Minh City, with an average low temperature of 71 degrees. The average high temperature for December is 89 degrees. No month in Ho Chi Minh City has an average high temperature of less than 89 degrees.
Sea temperature in Vietnam (Nha Trang) in March: 25.5Â°C, 77.8Â°F. Average rainfall in Vietnam in March: 38mm, 1.4in. Note: March heralds the beginning of the end of Vietnamâs winter dry season, with plenty of sunshine still on offer, and little or no rain throughout the country.ea temperature in Vietnam (Nha Trang) in October: 27.7Â°C, 81.9Â°F. Average rainfall in Vietnam in October: 99mm, 3.9in. Note: Skies begin to clear in the north of Vietnam as the rainy season tails off, bringing with it relief from the high humidity levels of previous months, although it remains hot.