Paksong is build at the Bolaven Plateau at an altitude of 1300 meters and there is a micro-climate, this means that it is always cooler then in other places as Pakse, Tat Lo or Attapeu on the other side from the Bolaven Plateau.
Paksong coffee website
Paksong, cool town with hot coffee
The climate at the Bolaven Plateau, 50 kms from Pakse
Paksong - Champasak - The climate in Paksong and the Bolaven Plateau
Paksong                                               Climate at the Bolaven Plateau
Weather forecast.

March / April / May / June / July / Aug

During daytime its between 22 and 28 degrees, night time 18 degrees !!!

Much cooler then in the rest of Laos and a nice cool place to give your body some energy.

This unique weather conditions in combination with the altitude and the lava soil makes Lao Coffee one of the best coffees in the world.

Sometimes the Bolaven Plateau is spelled as "Bolivian Plateau", "Bolovons Plateaux" or "Boloven Plateau", the same story for Paksong, thats sometimes spelled as "Pak Song", "Paksan", "Pakson" or "Pakxong"
MAP from the Bolaven Plateau

Rainy seizon.
The rainy seizon starts during the 'summer' in april and ends in October. Temperature is between 26 and 32 degrees and during  rainfall the temperature can drop under the 22 degrees for a couple of minutes.

During the rainy seizon it can rain every day for a 30 minutes and in the evening its cooler then the normal Lao climate. For the most travelers its a pleasent surprise because it means that they can have a good sleep without an airconditioner or fan what the feeling gives that they are back to normal for a couple of days.

During your stay at the Bolaven Plateau you will see everywhere lava rocks...
Climate at the Bolaven Plateau
Climate in Paksong
map from the Bolaven Plateau in Laos
the Bolaven Plateau is populized with lava rocks
Sep 01 2010
last update
 
From April to September its much cooler in Paksong: its every day between 26 and 28 degrees !!
Chill out in Paksong :P
Weather forecast for paksong
Weather.com