There are 3 of 4 regions in Thailand, which, according to December weather, belong to the dry season. These are South Thailand, North Thailand, Thailand - North coast. All 4 regions in Thailand, according to December weather, are experiencing the tourist season.

The lowest value of the day temperature in Thailand in December can be seen in North Thailand with a value of 28.1 °C (82.5 °F). The highest day temperature in December in Thailand can be found in Thailand - North coast, where the value of day temperature is 30.9 °C (87.7 °F).

The night temperature in Thailand in December is the lowest in North Thailand - its value is 14.3 °C (57.8 °F). In Thailand in December - the region with the highest night temperature is South Thailand. The value in this region is 23.0 °C (73.5 °F).

The lowest value of the sea temperature in December in Thailand can be seen in Thailand - North coast with a value of 27.6 °C (81.6 °F). In Thailand in December - the region with the highest sea temperature is South Thailand. The value in this region is 28.5 °C (83.2 °F).

The lowest number of rainy days in Thailand in December can be found in Thailand - North coast, where the value of number of rainy days is 2 days. The highest number of rainy days in Thailand in December can be found in Southeast Thailand, where the value of number of rainy days is 13 days.

The rainfall amount in Thailand in December is the lowest in Thailand - North coast - its value is 9 mm (0.36 in). In December in Thailand - the region with the highest rainfall amount is Southeast Thailand. The value in this region is 173 mm (6.82 in).

The lowest wind speed in Thailand in December can be found in North Thailand, where the value of wind speed is 0.9. In December in Thailand - the region with the highest wind speed is South Thailand. The value in this region is 2.4.

In December in Thailand - the region with the lowest humidity is Thailand - North coast. The value in this region is 69 %. The highest humidity in Thailand in December can be found in Southeast Thailand, where the value of humidity is 80 %.

In December in Thailand - the region with the lowest number of sun hours (without clouds) is Southeast Thailand. The value in this region is 7 hours. The highest value of the number of sun hours (without clouds) in Thailand in December can be seen in Thailand - North coast with a value of 8 hours.

The clear sky percentage in December in Thailand is the lowest in Southeast Thailand - its value is 57 %. In Thailand in December - the region with the highest clear sky percentage is Thailand - North coast. The value in this region is 74 %.

The day length in Thailand in December is the lowest in North Thailand - its value is 11 hours. The highest day length in December in Thailand can be found in South Thailand, where the value of day length is 12 hours.