July weather forecast
Thessaloniki, Greece

July brings the peak of summer to Thessaloniki, with the maximum temperature reaching a scorching 31.8°C (89.2°F). This is accompanied by lowest rainfall of 22mm (0.87") held in the entire year, making it the driest month. The high temperature encourages beach visits and water sports, while the balmy evenings offer a vibrant nightlife scene. Despite this heat, the gentle Mediterranean winds provide a comforting relief.

Temperature

Thessaloniki's July weather reaches an average high of 31.8°C (89.2°F) and an average low of 20.1°C (68.2°F), making it the warmest month.

Heat index

The heat index value for July is appraised at a torrid 35°C (95°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Thessaloniki, the average relative humidity in July is 53%.

Rainfall

In July, in Thessaloniki, the rain falls for 10.3 days. Throughout July, 22mm (0.87") of precipitation is accumulated. Throughout the year, in Thessaloniki, there are 133.1 rainfall days, and 436mm (17.17") of precipitation is accumulated.

Snowfall

In Thessaloniki, snow does not fall in April through October.

Sea temperature

July is the month with the warmest seawater, with an average sea temperature of 26.2°C (79.2°F).
Note: Water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are pleasurable, without feeling uncomfortable even during extended periods.

Daylight

The average length of the day in July in Thessaloniki is 14h and 45min.
On the first day of July in Thessaloniki, sunrise is at 06:01 and sunset at 21:03. On the last day of the month, sunrise is at 06:24 and sunset at 20:44 EEST.

Sunshine

July and August, with an average of 11.9h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In July, the maximum UV index of 7 suggests these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Boost your sun resistance with garments that are densely woven yet spacious. Take caution! The UV rays from the Sun gain strength from sand and water reflections.