Members

WMO has 187 Member States and 6 Member Territories

Member States / Territories	Date joined
Iceland Region VI: Europe	16 January 1948
New Zealand Region V: South-West Pacific	2 April 1948
Russian Federation Region VI: Europe	2 April 1948
Belarus Region VI: Europe	12 April 1948
Ukraine Region VI: Europe	12 April 1948
Romania Region VI: Europe	18 August 1948
Sweden Region VI: Europe	10 November 1948
Norway Region VI: Europe	9 December 1948
United Kingdom of Great Britain and Northern Ireland Region VI: Europe	14 December 1948
Hong Kong, China Region II: Asia	14 December 1948
Lebanon Region VI: Europe	22 December 1948
Finland Region VI: Europe	7 January 1949
Switzerland Region VI: Europe	23 February 1949
Australia Region V: South-West Pacific	14 March 1949
Philippines Region V: South-West Pacific	5 April 1949
India Region II: Asia	27 April 1949
United States of America Region IV: North America, Central America, Caribbean	4 May 1949
Mexico Region IV: North America, Central America, Caribbean	27 May 1949
Thailand Region II: Asia	11 July 1949
Türkiye Region VI: Europe	5 August 1949
Myanmar Region II: Asia	19 August 1949
Dominican Republic Region IV: North America, Central America, Caribbean	15 September 1949
Israel Region VI: Europe	30 September 1949
New Caledonia Region V: South-West Pacific	5 December 1949
French Polynesia Region V: South-West Pacific	5 December 1949

Iceland