- Category: Nature
- Published on Thursday, 06 October 2011 10:40
- Written by Super User
- Hits: 1243
The German colonial government still had the opportunity to move their residence for half of the year from Dar es Salaam to Lushoto, at the time the humidity and heat at the coast becomes unbearable. The graph below shows the annual cycle of hot and often humid months especially directly along the coast and during the short rains.
Pugu Hills is having less humidity and the short trip from town to pugu already changes your mood as soon as you start climbing the hills and the air cools down and the humidity starts dropping.
During a few months blankets can be required in Pugu at the time the aircos are still blasting in Masaki. What also influences the humidity in Pugu and clearly has its impact on the Pugu Forest is the dramatic drop of annual precipitation. Since the millenium the rains become less, although a slight improvement was noticed the last two years. Not only the recover of the Forest (in case the human activities can be controlled) will become difficult in the absence of adequate rains, but also bush fires which occured in the forest for for the first time two years back around the centre, become an additional thread.
While Kisarawe (Pugu Forest) used to have the highest annual precipitation in Dar es Salaam during the previous century, with values in the range of 1,400 mm per annum, this advantage has been lost with the ongoing climate change. An estimated 889 mm annual precipitation is provided for the period 1981 - 2009. Which figure dropped to 815 mm for the period 2000 - 2009.