A: The chemical formula for a phosphate ion is [PO4]3-. The formula indicates that one ion of phosphate contains one atom of phosphorus, represented by the P ... Full Answer >
Bangkok: Annual Weather Averages. April is the hottest month in Bangkok with an average temperature of 31Â°C (87Â°F) and the coldest is December at 26Â°C (79Â°F) with the most daily sunshine hours at 9 in December. The wettest month is September with an average of 220mm of rain. The best month to swim in the sea is in April when the average sea temperature is 30Â°C (86Â°F).
Here are some annual weather facts we collected from our historical weather data: 1  On average, the temperatures are always high. 2  A lot of rain (rainy season) falls in the months: May, June, July, August, September and October. 3  Bangkok has dry periods in January and December.  On average, the warmest month is May.