Réthymno Temperature by Month
Réthymno, Greece has an average annual maximum temperature of 21°C (70°F), ranging from 14°C (57°F) in February to 29°C (84°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Réthymno Monthly Temperatures
Visitors to Réthymno can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, ranging from 22°C (72°F) in July to 8°C (46°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Réthymno by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. July, the city's warmest month, averages 372 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Réthymno vs Greece
The map below shows the annual temperature across Greece. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Réthymno vs World: Temperature Compared
Réthymno's average annual maximum temperature is 21°C (70°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Réthymno?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Réthymno, February is the coolest month, with average highs of 14°C (57°F) and humidity around 67% — considered high. In July, the warmest month, temperatures average 29°C (84°F) with 57% humidity — conditions that feel moderate. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Réthymno this rarely lasts long on the ground.
For more on Réthymno's weather — including monthly rainfall, sunshine hours, and humidity — visit our Réthymno climate page.
