Two Years with the Natives in the Western Pacific
Rivers are found only on the larger islands, where there are volcanic rocks. In the coral rocks the rain-water oozes rapidly away, so that fresh-water springs are not frequently found, in spite of very considerable rainfall.
The climate is not hot and very equable. The average temperature in Efate in 1910 was 24.335° C.; the hottest month was February, with an average of 27.295°, the coolest, July with 11.9° C. The lowest absolute temperature was 11.9° C. in August, and the highest 35.6° C. in March. The average yearly variation, therefore, was 5.48°, and the absolute difference 23.7°.
The rainfall is very heavy. In December the maximum, 564 mm., was reached, and in June the minimum, 22 mm. The total rainfall was 3.012 mm., giving a daily average of 8.3 mm.
These figures, taken from a table in the