The hottest month in Nissi Beach is August when the average maximum temperature is 33°, average temperature is 28° and average minimum temperature is 23°.
The coolest month in Nissi Beach is February when the average maximum temperature is 18°, average temperature is 13° and average minimum temperature is 8°.
The longest days in Nissi Beach are in June, with an average of 14.5 hours of daylight per day. December has the shortest days with an average of 9.8 hours of daylight per day.
The sunniest days in Nissi Beach are in June which has the most hours of sunshine per day with an average of 11.5 hours of sunshine per day, making it a very sunny and pleasant month with long bright days. January has the least sunshine with an average of 5.1 hours of sunshine per day, making it a sunny month that is overcast at times.
The ultraviolet index is the highest in July when it reaches 11.4 and lowest in December when it reaches 2.6.
An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.
The warmest sea water temperatures in Nissi Beach are found in August when they peak at 28° and lowest in March when they dip to 17°.
The sea is best for swimming between June and December when the temperature is above 22° which is comfortable for swimming though some may prefer warmer water.
The wettest month in Nissi Beach is December with 1.4cm of rain and January has the most days of rain with 13.3 days with some rain, a slightly wet time to visit the beach.
The driest month in Nissi Beach is June with 0cm of rain and July has the fewest days of rain with 0.1 days with some rain, an extremely dry time to visit the beach.
The most humid month in Nissi Beach is August with a dew point (an indicator of humidity) of 25° which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.
The least humid month in Nissi Beach is January with a dew point of 10° which is a bit dry for some.
The most windy month in Nissi Beach is July when the average maximum windspeed is 32kmh and the average wind speed is 13kmh.
The least windy month in Nissi Beach is November when the average maximum windspeed is 23kmh and the average wind speed is 12kmh.