Explore the Yasawa Islands
The Yasawa islands are known for their tropical beautiful beaches and the picturesque atmosphere. You might want to cross it of your bucket list.
Treasure Island Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Treasure Island.
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Climate overview of Treasure Island
Treasure Island, in the Mamanuca Islands, Fiji, experiences a tropical rainforest climate with consistently warm temperatures year-round. The area receives substantial rainfall throughout the year, with particularly heavy precipitation from December to April during the wet season and cyclone season.
This small resort island attracts tourists with its white sand beaches and lagoons perfect for snorkeling and diving. It's also known for its relaxed atmosphere and excellent access to vibrant coral reefs. Let's now guide you through the climate details for a complete overview on the best time to visit.
Treasure Island Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Treasure Island - and find the best time to visit.
Monthly Temperature in Treasure Island
The temperature in Treasure Island remains steady throughout the year, providing a consistently comfortable climate. Average daytime temperatures reach a comfortable 30°C (86°F) in February. In August, the coolest month of the year, temperatures drop to a comfortable 27°C (81°F).
At night, temperatures range from around 26°C (79°F) in February to 23°C (73°F) in August.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Treasure Island
Treasure Island has a relatively rainy climate with high precipitation levels, averaging 1759 mm (69 in) of rainfall annually. Treasure Island can be quite wet during February, receiving approximately 292 mm (11 in) of precipitation over 19 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 49 mm (1.9 in) of precipitation spread across 18 rainy days. For more details, please visit our Treasure Island Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Treasure Island
Treasure Island experiences moderate variation in sunshine hours across the seasons. With 7.7 hours daily sunshine in August, it dips to 6.1 hours in February, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Nadi, Fiji (22 KM, 13 Miles).
Daily hours of sunshine
Data from: Nadi, Fiji (22 KM, 13 Miles).
Water Temperature in Treasure Island
The mean water temperature over the year ranges from 25°C (77°F) in August to 28°C (82°F) in January.
Water temperature over the year
Data from: Nadi, Fiji (22 KM, 13 Miles).
Humidity in Treasure Island by Month
The city experiences its highest humidity in March, reaching 85%. In August, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Nadi, Fiji (22 KM, 13 Miles).
Wind Speed in Treasure Island
The average wind speed over the year ranges from 2 m/s (4 knots) to 3 m/s (6 knots). It is lower in January, February, March, April, May and June and higher in July, August, September, October, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Data from: Nadi, Fiji (22 KM, 13 Miles).
Best Time to Visit Treasure Island
For comfortable weather, consider visiting Treasure Island in May, June, July, August and September. Conditions are usually least favourable in January and February.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very wet
Feb
very wet
Mar
mixed
Apr
very good
May
excellent
Jun
excellent
Jul
excellent
Aug
excellent
Sep
excellent
Oct
very good
Nov
very good
Dec
very good
- Best overall: May, June, July, August and September
- Warmest weather: January, February, March, April, May, November and December
- Most sunshine: August, October, November and December
- Best for swimming: Any time of year. The sea stays pleasantly warm year-round.
- Wettest months: January, February, March, April and December, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from January to April
Frequently asked questions about the climate in Treasure Island
What is the best time to visit Treasure Island?
May, June, July, August and September typically offer the most optimal weather in Treasure Island. In contrast, January and February tend to have less optimal conditions. Treasure Island has a distinct rainy season from January to April.
What temperatures can I expect in Treasure Island?
Daytime highs range from 27°C (81°F) in August to 30°C (86°F) in February. Nighttime lows range from 23°C (73°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Treasure Island get?
Annual rainfall is around 1759 mm (69 in). February is the wettest month with 292 mm (11 in), while July is the driest with 49 mm (1.9 in).
How sunny is Treasure Island?
Treasure Island receives around 2,542 hours of sunshine per year. August is the sunniest month with 231 hours, while February is the cloudiest with just 184 hours. Overall, Treasure Island enjoys abundant sunshine.
Treasure Island 3-Day Forecast
Treasure Island on the map
Treasure Island is highlighted - select any city to see its climate.
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