June weather forecast
Zakinthos, Greece

The first month of the summer, June, is also a moderately hot month in Zakinthos, Greece, with an average temperature varying between 18.2°C (64.8°F) and 27.8°C (82°F).

Temperature

As Zakinthos transitions into June, the average high-temperature is observed to slightly rise from a warm 23.4°C (74.1°F) in May to a still moderately hot 27.8°C (82°F). The average temperature in Zakinthos, Greece, drops to a refreshing 18.2°C (64.8°F) during the night in the month of June.

Heat index

June's mean heat index is estimated at 29°C (84.2°F). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

In Zakinthos, the average relative humidity in June is 62.8%.

Rainfall

In Zakinthos, in June, it is raining for 1.1 days, with typically 7mm (0.28") of accumulated precipitation. In Zakinthos, during the entire year, the rain falls for 78.5 days and collects up to 943mm (37.13") of precipitation.

Sea temperature

In June, the average sea temperature is 23.3°C (73.9°F).
Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 23.3°C (73.9°F).

Daylight

The month with the longest days in Zakinthos is June, with an average of 14h and 42min of daylight.
On the first day of the month, sunrise is at 06:15 and sunset at 20:52. On the last day of June, in Zakinthos, sunrise is at 06:17 and sunset at 21:02 EEST.

Sunshine

The average sunshine in June in Zakinthos is 12h.

UV index

In June, the average daily maximum UV index is 9. A UV Index estimate of 8 to 10 represents a very high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 9 during June translates into the following recommendations:
Always be careful, as unprotected skin and eyes might burn in no time. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Avoid staying out in the Sun for too long, particularly if you're burn-prone. Always protect your skin with a 30 SPF sunscreen. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.