Averages are for Cocoa / Patrick Air Force Base, which is 6 miles from Cocoa Beach. Mean Temp: 74 °F. Cocoa Beach Water Temperature In April Posted by Aulian February 23, 2020 in Beach The weather and climate in key west surf beach weather report for april 6 dolphin sup eco adventures surf beach weather report for april 6 cocoa beach shark and jellyfish report Average monthly temperatures in Cocoa Beach (degrees centigrade and fahrenheit) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec °C: 20.6: 21: 23.5: 26.4: 28.5: 30.2 The maximum average rainfall usually falls in September. Weather in January » The lowest monthly average temperature in Cocoa Beach for January is 63 degrees. Precipitation: 1.62" Humidity: 75%. Annual Weather Averages Near Cocoa Beach. The most monthly precipitation in Cocoa Beach occurs in August with 10 inches. The pollution index in Cocoa Beach is 230% worse than the national average. The air quality index in Cocoa Beach is 30% better than the national average. This section reports on the wide-area average surface temperature of that water. The highest recorded temperature in Cocoa Beach was an extremely hot 102 degrees Fahrenheit (39 degrees Celsius) in 1980 and the lowest recorded temperature was a very chilly 17 F (minus 8 C) in 1977. On average, Cocoa Beach's warmest months are July and August, and January is the average coolest month. The average surface water temperature in Cocoa Beach is essentially constant during March, remaining within 1°F of 71°F throughout. Based on weather reports collected during 1985–2015. Late March is a great time to go to Cocoa Beach.Although the water temperature will not be at its highest of the year, it will be warm enough to be comfortable, and thousands of people will be in the water. Cocoa Beach is located near a large body of water (e.g., ocean, sea, or large lake). January, the same as December, in Cocoa Beach, Florida, is another pleasant winter month, with average temperature ranging between max 68°F (20°C) and min 51.8°F (11°C).January is the coldest month, with an average high-temperature of 68°F (20°C) and an average low-temperature of 51.8°F (11°C). Showing: All Year Climate & Weather Averages in Cocoa Beach. Low Temp: 57 °F. Wind: 9 mph. High Temp: 88 °F. Dew Point: 66 °F. Get the monthly weather forecast for Cocoa Beach, FL, including daily high/low, historical averages, to help you plan ahead.