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Merritt Island

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Merritt Island Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Merritt Island year round climate

  • Spring (March–May): Average 71–78°F, warm and comfortable climate, moderate rainfall. Common activities: Outdoor activities, birdwatching, boating. Recommended clothing: Light long-sleeved clothing, light jacket.
  • Summer (June–August): Average 81–83°F, hot and humid, higher rainfall. Common activities: Swimming, beach activities, water sports. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 77–82°F, mild climate, September has higher rainfall. Common activities: Outdoor activities, enjoying autumn scenery. Recommended clothing: Comfortable breathable long-sleeved or short-sleeved clothing, adjust clothing as needed.
  • Winter (December–February): Average 64–67°F, mild and comfortable, less rainfall. Common activities: Birdwatching, hiking. Recommended clothing: Light jacket, long-sleeved clothing.

Merritt Island climatological average

Annual average temperature: approx. 75.2°F / Annual rainfall: approx. 1281 mm / Summer humidity: 70%–80% / Rainiest month: September

Merritt Island monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
64.4°F
62.7
February
67.3°F
40.7
March
71.8°F
58.3
April
74.5°F
91.2
May
78.8°F
56.7
June
81.3°F
130.3
July
83.3°F
135.8
August
83.8°F
137.2
September
82°F
258.5
October
77.2°F
115.2
November
72.7°F
108.3
December
66°F
86.4

Merritt Island weather for the next seven days

1/29
Thursday
Sunny
62.4°F/47.7°F
1/30
Friday
Overcast
65°F/58.4°F
1/31
Saturday
Cloudy
61.2°F/43.6°F
2/1
Sunday
Sunny
45.1°F/28.6°F
2/2
Monday
Sunny
51.5°F/34.9°F
2/3
Tuesday
Partly Cloudy
60.1°F/46.5°F
2/4
Wednesday
Sunny
66°F/57°F