18 730 square km the geography of the Western Forest Complex ranges from
lowlands to high mountains. From rugged Yen and Tao Dam mountains in the north,
through other limestone mountains, valleys, lowlands and water reservoirs in the
middle, down to slopes of the Tenaserrim mountain range, that extends further
over the border to Myanmar. The area is packed with rivers, creeks, caves,
cliffs, waterfalls and viewpoints. It is also an important watershed area for 6 of the 25 major river basins in
Very hot summers, very humid rainy season and quite cold winters. This is a
bit of generalization for such a extended area, but not too far being accurate.
Of course it involves many exceptions. For example the hills protecting the
Erawan National Park from the eastern monsoon
result in a lower average rainfall while the
Kaeng Krachan National Park has heavy rains resulting in its closure during the rainy season.
When to go? The most suitable time for travelling around the Western Forest
Complex is the cool winter, but for seeing waterfalls at its full beauty the
rainy season is much better as the water levels are high. On some places the
highest temperatures can reach 40 C in April and May and the lowest 3 C in December.
For more detailed information on geography and climate of the Western Forest Complex see the
protected areas pages.