Climate of Meghalaya plateau is influenced by elevation and distribution
of physical relief. On the basis of weather condition, the Meghalaya
plateau has 4 distinct seasons: They are
(a) The rainy season from May to early October.
(b) The cool season from early October to November.
(c) The cold season from December to February.
(d) The warm season or hot season from March to April .
In this period the entire plateau witness strong winds. This is
due to northward migration of jet streams from the Gangetic plain
to Tibetan plateau and development of low pressure in the Tibetan
plateau at this time of the year.
The western part of the Garo hills is relatively lower in elevation
as compared to Khasi and Jaintia hills. Garo hills experienced higher
temperature conditions and humidity from February to October. April
and May are the warmest months and January is the coldest month.
The nature of elevation and slope has also influenced the distribution
of rainfall. The rainfall is heaviest in the south-eastern Garo
hills and decreases in the central regions and in the north.
The Khasi and Jaintia hills experiences a moderate climate because
of higher elevation. Warm and humid conditions are prevalent in
the foothills region in the south and sub-montane region in the
north and central uplands. The plateau experiences a temperature
of 24o c throughout the year.
The southern parts of the plateau has the Cherrapunjee -Mawsynram
region. It receives the heaviest rainfall, an annual average of
12670 mm. This is due to its location at the head of Bangladesh
plains. The south west monsoon strikes these margins as it raises
abruptly from the plains. The vertical movement of this moist monsoon
streams precipitate heavily in the escarpment region. This type
of rainfall is known as orographic rainfall.
The Khasi and Jaintia hills receive an average of 7700 mm of rainfall
and lies in the rain shadow area. Cherrapunjee and Mawsynram lying
about 55 Km south of Shillong receives an annual rainfall of about
14,000 mm which is the highest amount of rainfall in the world.
Summer : 25oC- 15oC
Winter : 16oC - 4oC
Mansoon: June - September
Best time to visit
October - March
Visit Meghalaya any time of the year except the rainy season, which
is June to September. This is, after all, one of the wettest places
Information on weather & climate in Meghalaya - India