Treasure Island Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Treasure Island year round climate
Spring (March–May): Average 53–58°F, mild climate with gradually decreasing rainfall. March is relatively humid, while April and May are dry and comfortable, ideal for outdoor activities. Common activities: Hiking, walking, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): Average 61–65°F, hot and dry with minimal rainfall. Suitable for beach activities and outdoor recreation. Common activities: Swimming, sunbathing, watersports. Recommended clothing: Light and breathable clothing, hat, sunglasses.
Autumn (September–November): Average 62–54°F, pleasant and comfortable climate, gradually cooling down from warm temperatures with less rainfall. Suitable for sightseeing and outdoor activities. Common activities: Sightseeing, enjoying local cuisine, photography. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Winter (December–February): Average 51–51°F, lower temperatures with more rainfall, especially in December. Suitable for indoor activities. Common activities: Visiting museums, attending performances, enjoying café time. Recommended clothing: Warm jacket, sweater, scarf, hat, waterproof jacket.
Treasure Island climatological average
Annual average temperature: approx. 57.9°F / Annual rainfall: approx. 476 mm / Summer humidity: 60%–70% / Rainiest month: December
Treasure Island monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
51.6°F
106.5
February
51.3°F
55.7
March
53.1°F
85
April
55.8°F
18.6
May
58.3°F
14.5
June
61.5°F
2.3
July
63.3°F
0
August
65.3°F
0.6
September
64.9°F
2.5
October
62.6°F
1.8
November
54.7°F
31.8
December
51.8°F
156.7
Treasure Island weather for the next seven days
8/13
Thursday
Patchy rain nearby
65.1°F/55.9°F
8/14
Friday
Patchy rain nearby
64.5°F/57.2°F
8/15
Saturday
Partly Cloudy
63.8°F/57.1°F
8/16
Sunday
Sunny
66.8°F/56.4°F
8/17
Monday
Sunny
65°F/56.4°F
8/18
Tuesday
Partly Cloudy
63.6°F/57.3°F
8/19
Wednesday
Sunny
64.4°F/57.1°F
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