Solomon Islands Climate
Top 5 Cities: Honiara, Gizo, Auki, Noro, and Tulagi
This month in numbers
The Solomon Islands experienced its 6th warmest April on record in 2026, with an average temperature of 26.74°C, an anomaly of +0.8°C compared to the 1961–1990 baseline. Globally, April 2026 was the 2nd warmest April on record for land temperatures, with an anomaly of +1.1°C.
What changed
The period of February–April 2026 was the 3rd warmest on record for the Solomon Islands, with an average temperature of 26.92°C, marking a significant anomaly of +1°C above the 1961–1990 baseline. This warming trend in the Solomon Islands aligns with the broader global picture, as global land temperatures for the same three-month period also ranked as the 2nd warmest on record, with an anomaly of +1.2°C. The Solomon Islands' 3-month anomaly of +0.99°C places it 192nd out of 234 regions globally.
What’s driving change?
The warming observed in the Solomon Islands is influenced by the broader global trend of increasing temperatures, a phenomenon where . The region also experienced a significant extreme weather event in April 2026 with Tropical Cyclone Maila, which rapidly intensified to a Category 5 cyclone. This unusually intense system brought destructive winds, heavy rainfall, and dangerous storm surges, leading to widespread flooding, infrastructure damage, and displacement across the islands, particularly in Western and Choiseul Provinces. The current ENSO state is Neutral, with an anomaly of +0.11°C in the Niño 3.4 region for February-April 2026. However, there is a strong forecast for El Niño to emerge in the coming months, with a 61% chance for May-July and a 79% chance for June-August. El Niño events typically bring warmer and drier conditions to the Solomon Islands. More information on the evolving ENSO situation can be found at ENSO tracker.
Looking ahead
An evolving El Niño phase suggests a likelihood of warmer and potentially drier conditions in the Solomon Islands in the coming months.
Sources:
Generated by Gemini from climate data and web sources
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Data Sources
Data Sources for Solomon Islands
Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) — see the Methodology & Sources page for the complete dataset list and update calendar.
FAQs
FAQs
How is the climate in Solomon Islands changing?
Solomon Islands is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The trend rate is shown as °C per decade in the headline panel; you can also see the warmest and coolest years on file.
Where does the climate data for Solomon Islands come from?
Climate data for Solomon Islands comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.
What is the climate baseline used on this page?
Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.
Which areas does the Solomon Islands climate data cover?
The Solomon Islands climate profile covers Honiara, Gizo, Auki, Noro and surrounding areas. Temperature, rainfall and emissions data for Solomon Islands
How often is the Solomon Islands climate update refreshed?
The Solomon Islands climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.