Lanka has warm climate, moderated by ocean winds and considerable moisture.
Lowlands and coastal Sri Lanka have hot humid climate. On the hills the
climate is salubrious. Both type of climates are separated by a few hours
motoring. In Colombo, the commercial capital, located on the west coast, the
temperature differs from 26.4 C to 27.8 C. Relative humidity is 70% during
days while at nights it reaches 90%. Lowland country enjoys tropical
climate. The climate is quite cool in hilly regions. At the altitude of
nearly 2,000 metres the temperature goes down to 16ºC. May, June and
July are the hottest months of the year.
The average yearly temperature in Sri Lanka as a whole ranges from 28 to
30oC. The mean temperature varies from a chilly low of 16ºC in Nuwara
Eliya in the Central Highlands, where even frosting might occur for several
days in the winter, to a high of 32o C in Trincomalee on the northeast
coast. The coastal areas are cooled by sea breezes.
As for monsoons Sri Lanka has no off season. North-east monsoon brings
rain in the northern and eastern regions in December and January while the
western, southern and central regions of the island get rain from May to
July due to the south west monsoon.
Lightweights and rainwear