Vaisala - Company Announcement

Vaisala's Return of Capital to Shareholders

Vaisala Corporation         Stock Exchange Release       August 13, 2013  at
3:00 p.m.


 Vaisala Corporation's Annual General Meeting of Shareholders held on March
26, 2013 decided to decrease the share premium fund presented in the Company's
balance sheet on December 31, 2012 by EUR 22,306,293.52 by transferring all the
funds in the share premium fund into the invested non-restricted equity fund.
The Meeting also decided that of the funds transferred into the invested non-
restricted equity funds EUR 1.23 per share will be distributed to the
shareholders as a return of capital, which equals to approximately EUR 22.2
million return of capital.

The Finnish National Board of Patents and Registration published the public
summons to company's creditors on April 18, 2013, and the due date set to object
the decrease of the share premium fund in the summons was July 31, 2013. The
company's creditors did not object the decrease of the share premium fund by the
said due date and the decrease of the share premium fund and return of capital
can be implemented as decided by the Annual General Meeting.

As authorized by the Annual General Meeting of Shareholders held on March
26, 2013, the Board of Directors of Vaisala Corporation has decided that the
record date for the distribution of funds is August 16, 2013 and that the
payment date for the return of capital is August 27, 2013. The return of capital
of EUR 1.23 per share is paid to a shareholder, who is registered on record date
decided by the Board of Directors in the Register of Shareholders of the Company
held by Euroclear Finland Ltd.



More information:
Kaarina Muurinen, CFO
Mobile +358 40 577 5066
Vaisala Corporation

Distribution:
NASDAQ OMX Helsinki
Key media
www.vaisala.com


Vaisala is a global leader in environmental and industrial measurement. Building
on 75 years of experience, Vaisala contributes to a better quality of life by
providing a comprehensive range of innovative observation and measurement
products and services for chosen weather-related and industrial markets.
Headquartered in Finland, Vaisala employs approximately 1400 professionals
worldwide and is listed on the NASDAQ OMX Helsinki stock exchange.
www.vaisala.com  www.twitter.com/VaisalaGroup

[HUG#1722706]