256 



ZONES AND REGIONS [Pt. III. Sect. I 



CLIMATE OF CEYLON : LOWLANDS. 

 (From Meteorol. Zeitschr. i8S6, p. 272.) 



I. Humid District. 



A. West— Colombo. 



Temperature . . . . 



Jan. 



26-I 



Relative Humidity 



78 



Feb. 



267 



71 



Mar. 



27-8 



n 



Apr. 



:8-3 



28-1 



80 



May 



June 



81 



7-3 



83 



J"iy 



27-0 



82 



Aug. 



Sept. 



26-9 



83 



27-1 



Oct. 



26-8 



82 



Nov. 



26-5 



82 



Dec. 



26-2 



80 



Cloudiness 



4-9 



4-0 



5-5 



6-8 



7-4 



6-8 



7.0 



6-8 



6-8 



6-3 



5-6 



Rainfall in mm. (annual 

 2,219 mm.) 



47 



142 



233 



328 



191 



137 



316 



334 



169 



B. South— Galle. 

 Temperature . . . 



25-3 



26- 1 



27-1 



27-6 



27-4 



267 



26-3 



26-4 



26-4 



26-2 



2S-9 



25-5! 

 90 

 5-6 



Relative Humidity 



87 



86 



86 



91 



90 



91 



91 



91 



91 



Cloudiness 



5-6 



4.9 



5-0 



6-0 



67 



7-0 



6-s 



6-6 



6-5 



67 



7-0 



Rainfall in mm. (annual 

 2,273 mm-) 



109 



124 



232 



284 



137 



142 



313 



291 I 161 



IL Dry District. 

 A. East — Batticaloa. 

 Temperature .... 



24.9 



257 



26-8 



28-1 



28-6 



28-4 



28-3 



27.9 



277 



27-0 



257 



24-8 



Relative Humidity 



85 



85 



82 



79 



79 



82 



87 



Cloudiness 



6-9 



S-9 



S-4 



5-6 



6-8 



6-8 



6-8 



6.5 



67 



92 

 6-8 



Rainfall in mm. (annual 

 1,332 mm.) 



206 



91 



85 



42 



41 



17 



72 



52 



146 



331 



B. North— Jaffna. 

 Temperature . . . 



25-3 



26-2 



28-1 



29-s 



29-3 



287 



28-1 



27.9 



27-8 



27-4 



25' I 



25-2 



87 

 6-0 



Relative Humidity . . . 



81 



n 



79 



82 



8S 



86 



85 



86 



87 



86 



88 



Cloudiness 



4-3 



3-0 



2-6 



3-7 



3-9 



5-4 



5-4 



5-6 



5.0 



5-6 



6.4 



Rainfall in mm. (annual 

 1,215 mm.) 



51 



34 



34 



58 



53 



14 



31 



65 



227 



375 



262 ; 



CEYLON. 



DISTRIBUTION OF THE RAINFALL IN PERCENTAGES. 



(After Woeikof, Die Klimate der Erde, I, p. 392.) 



