The climate of Guadalcanal Island in September is humid. An average of 354 mm precipitation is recorded over 27 days. The situation is wetter than the previous month: in August, an average of 284 mm is recorded over 26 days.
Temperatures are warm in Guadalcanal Island in September. The average maximum temperature reaches 30°C, while the minimum falls to about 26°C. The month's average temperature is 28°C. These normals should be compared with the records recorded in Guadalcanal Island in September: 34°C as a maximum in 2021 and 23°C as a minimum in 2015. We can expect about 19 days with temperatures above 30°, or 63% of the month.
In September, the days last on average 12:03 in Guadalcanal Island. The sun rises around 06:13 and sets around 18:16.
With only fair weather, the month of September is not the best month of the year, but a stay to Guadalcanal Island in the Solomon Islands remains possible depending on your priorities.
In September, the most favorable activities in Guadalcanal Island are: Beach and swimming, Animal observation, Diving and snorkeling, Watersports, Nature and landscapes and Boat trip and cruise.