Due to its size, there are considerable variations in Texas' climate. The Gulf Coast experiences a maritime climate, whereas inland it's more continental, drier in the west, and wetter along the eastern border with Louisiana. Dallas experiences hot summers with higher humidity and thunderstorms; west and southwest Texas is hot and dry. Average temperature: 34 to 36ºC (93 to 96ºF) during summer; 12 to 14ºC (54 to 57ºF) during winter; and 19 to 22ºC (66 to 72ºF) for coastal winter temperatures. Hurricanes and tornados are not uncommon.

Lightweights are advised throughout the year, with warmer clothes for the winter.