In Bangkok, the rainy season starts in May and lasts till September, but really picking up in June. Since this is ‘wet season’, tourists will witness plenty of sunshine. Moreover, rain can sometimes come to release the dwellers from the temperatures that stand in the high 20’s. The rain normally falls in the afternoon but there are infrequent days when the city will be a washed with rain for the whole day. Because Bangkok lies only 6 ft above sea level, so when there are prolonged periods of rain this can lead to harsh and problematic flooding when the rivers and canals overflow.