Welcome to the new WMO Community Platform!

We are currently migrating all the content from the legacy system and you might find incomplete pages. The legacy system is still available here.

If you find any issue with the new system or you want to send some feedback please send an email to community@wmo.int

WMO-No. 8 - Provisional 2020 Edition

The Provisional 2020 Edition of the Guide to Instruments and Methods of Observation (WMO-No. 8; Volume IV and Volume III/Chapter 4) is now available for information. To find more please click here.