Solomon Islands Weather & Climate: Monthly Averages

The Solomon Islands is a tropical country in Oceania located along the Pacific Ocean, named after the biblical character King Solomon. Because the Solomon Islands is within the Pacific Ring of Fire, the country is home to some of the world's most active land and underwater volcanoes. Some islands in the country have been directly formed from volcanic eruptions in the past, making some islands uninhabited today.

The Solomon Islands are mostly made up of rugged mountains with some low coral atolls, the highest point being Mount Makarakomburu, at 2,447 meters (8,028 ft). As the country is within the Pacific Ocean, the Solomon Islands is also known for its white sand beaches, pristine azure waters, and greener pastures.

Temperature and Sunshine

On average, the weather is very warm in the Solomon Islands all year-round. Daytime temperatures remain fairly consistent, ranging from 30°C (86°F) to 31°C (88°F) in Honiara, while nighttime temperatures range from 22°C (72°F) to 23°C (73°F) in Honiara.

October is the month with the most sunshine, with an average of 228 hours in the capital, Honiara. Meanwhile, February is the month with the least sunshine in Honiara, with an average of 154 hours.

Rainfall and Wet Season

March is the wettest month of the year in the Solomon Islands, with heavy rainfall ranging from 211 mm (8.3 in) in Munda to 359 mm (14 in) in Honiara. September is the driest month, with rainfall ranging from 84 mm (3.3 in) in Munda to 96 mm (3.8 in) in Honiara.

Are There Four Seasons in the Solomon Islands?

The Solomon Islands does not have four seasons. Due to its proximity to the equator, the Solomon Islands has a tropical monsoon climate, with few instances of extreme temperatures and weather. The weather is relatively hot and humid all year-round with no recorded snowfall.

Do the Solomon Islands Experience Natural Disasters?

As a tropical country made up of volcanic islands, volcanic eruptions occur more frequently in the Solomon Islands compared to other regions. The country also experiences earthquakes, cyclones, and floods due to heavy rainfall in January, February, and March when average rainfall exceeds 254 mm (10 in).

Best Time to Visit the Solomon Islands

The best time to visit the Solomon Islands is when the country experiences its lowest levels of rainfall. Consider visiting in September, when rainfall is at its lowest, allowing travelers to enjoy the country's tourist destinations.

Besides the capital Honiara, the Western Province has iconic tourist destinations worth exploring. The Shark Point Dive Site in Munda is the most visited dive site in the country, home to schools of fish and coral formations. Another must-visit location is the Roviana Lagoon, famous for its emerald-colored waters where major bodies of water meet.

In September, visitors can enjoy these destinations with a very warm temperature of 30°C (86°F) on average, so be sure to stay hydrated and dress lightly.