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.
The temperature in Vietnam is high. The annual average temperatures range from 22oC to 27oC. However, the average temperature is different in every place. In Hanoi the average temperature is 23oC, in Ho Chi Minh City 26oC and 25oC in Hue.Some places like Dalat and Sapa have a maximum temperature of 20oC in the summer. Every year there are 100 rainy days and the average rainfall is 1,500 to 2,000mm. The humidity ranges around 80%.ietnam is affected by the monsoon, that's why the average temperature is lower than the other countries which are located in the same longitude in Asian. In comparing with these countries, the temperature in winter is colder and in summer is less hotter in Vietnam.