Climate & Weather Guide
Climate zones, seasonal temperatures, rainfall patterns, and best travel times in Samoa
Samoa, a small Pacific island nation covering about 2,831 km², features a uniformly tropical climate ideal for residents seeking year-round warmth and lush greenery. Predominantly classified as Tropical rainforest (Af) in coastal areas like Apia and Tropical savanna (Aw) in most inland regions per Köppen-Geiger, it offers consistent temperatures with minimal seasonal variation. The wet season (November-April) brings heavy rainfall and cyclone risks, while the dry season (May-October) provides sunnier conditions. High humidity and abundant sunshine make it appealing for expats, though flooding and tropical storms require preparedness. Recent data confirms stable warmth, supporting outdoor lifestyles and agriculture.
Summer Average
26-30°C
Winter Average
24-28°C
Climate Types
Tropical rainforest and Tropical savanna
2500-4000 mm
2,500-2,800 hours annually
75-85%
Regional Climate Variations
Upolu Island (including Apia)
Upolu, home to the capital Apia, has a Tropical rainforest climate (Af) with steady high temperatures averaging 26-30°C year-round and very high rainfall exceeding 3000mm annually. Wet season downpours from November to April cause frequent flooding in low-lying areas, while drier months offer relief. High humidity persists, fostering lush vegetation but challenging for those unaccustomed to tropical moisture. Residents enjoy beach access and vibrant markets, but must prepare for cyclones.
Oppressively humid with persistent warmth, sudden heavy showers, and vibrant tropical greenery; perfect for water lovers but demands cyclone readiness.
Savai'i Island
Larger Savai'i exhibits Tropical savanna climate (Aw) with a pronounced dry season (May-October) reducing rainfall compared to Upolu, though still very high at 2500-3500mm yearly. Temperatures mirror the national average of 24-30°C, with cooling trade winds. Volcanic terrain influences microclimates, offering slightly drier interiors. Expats appreciate rugged hikes and lava fields, balanced by wet season intensity.
Warm, breezy with wet-dry contrast; lush during rains, more comfortable in dry periods, ideal for adventure seekers adapting to island rhythms.
Samoa's compact size yields a homogeneous tropical climate with Tropical rainforest and savanna types, delivering eternal summer warmth and very high rainfall. Expats enjoy consistent 24-30°C temperatures and natural beauty, though high humidity and cyclone season demand resilient planning. Ideal for paradise living with proactive weather awareness.
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