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).
Key weather averages for Bangkok in April. 1  35. 35Â°C max day temperature. 2  8. 8 hours of sunshine per day. 3  6. 6 days with some rainfall. 4  26. 26Â°C min night temperature. 5  12. 12 hours of daylight per day. 6  E. Extreme heat & humidity. 7  68. 68 mm of monthly rainfall. 8  11. 11+ (Extreme) UV index.