Kastamonu Temperature by Month
The average annual maximum temperature in Kastamonu, Black Sea Region Turkey, Turkey is 16°C (61°F), with daytime highs ranging from 4°C (39°F) in January to 28°C (82°F) in August. This page covers monthly averages, day-night differences, and how Kastamonu compares to cities worldwide.
Kastamonu Monthly Temperatures
Visitors to Kastamonu can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, ranging from 14°C (57°F) in August to -5°C (23°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Kastamonu by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak.
The chart below shows the average temperature throughout the year:
Temperature: Kastamonu vs Turkey
The map below shows the annual temperature across Turkey. You can also select individual months if you want to compare a specific time of year.
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Kastamonu vs World: Temperature Compared
Kastamonu's average annual maximum temperature is 16°C (61°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
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.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Kastamonu's weather — including monthly rainfall, sunshine hours, and humidity — visit our Kastamonu climate page.
