Climate almanac
Merritt Island
Florida, United States · 28.36°, -80.69°
What is the climate like in Merritt Island?
The best time to visit Merritt Island is typically November – May, with trip comfort peaking in March (7.9/10). Merritt Island is warmest in July, when daily highs average 86°F (30°C), and coolest in January, when lows fall to about 58°F (15°C). The wettest month is typically September and the driest is March; the year sees roughly 49 in (1249 mm) of precipitation.
- Best time to visitNovember – May — comfort peaks in March (7.9/10)
- Warmest monthJuly — average high 86°F (30°C)
- Coolest monthJanuary — average low 58°F (15°C)
- Wettest monthSeptember (8.3 in (210 mm))
- Driest monthMarch (1.5 in (39 mm))
- Annual precipitation49 in (1249 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromCocoa Beach Patrick AFB, 16 km away (1950-2026)