COUNTRYAAH, Singapore Island has a predominantly flat terrain; close
to 2/3 of the island is lower than 15 m above sea level. In
the middle of the island, however, there are a number of
granite cliffs, among others. Bukit Timah (177 meters above
sea level), which is the highest point of the island.
Singapore has a typical rainforest climate. The average
temperature during the year varies slightly, from 25 ～ C in
January to 27 ～ C in June. The average rainfall during the
year amounts to about 2,700 mm. December and January, when
the northeast passage enters humid air from the sea, are the
wettest months with about 250 mm of rain each. The heavy
rainfall and the flat, urban, embossed terrain mean that
floods are common.
The natural vegetation consists of lowland rainforest and
mangrove forest along the coasts. Today, only fragments of
natural rainforest remain.
In Singapore, in 1997 there was a nature reserve
consisting of two parts, Central Catchment and Bukit Timah,
which totaled 27 km 2 in size.