Guatemala has a pleasant subtropical climate year round, and travel takes place throughout the year. The dry season runs roughly from November through May. During the wet season, particularly from June through September, you can expect some rain, though frequently this is in the form of periodic showers or afternoon downpours rather than non-stop rain. Throughout the year temperatures remain relatively constant, with an average in the upper 70s to mid 80s during the day and upper 60s to lower 70s at night. Inland lowland temperatures in the rainforest (for example near Tikal) can go into the 90s. In the highlands, temperatures will always be a bit cooler, and at night it can be quite cool, dropping into the 50s or even colder.