Weather in Chaniá in December

Shoulder season. December is shoulder season in Chaniá — cheaper, quieter, and a genuine gamble. You should expect rain on 16 days of the month, which is more days wet than dry.

December ranks 10 of 12 — near the bottom of Chaniá's year. June is the month that works, and the swing between the two is 43 points, which is a different holiday rather than a slightly better one.

Rain on 16 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 16.4 °C days and 13.1 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: the day barely swings — 3.2 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest December day reached 23.7 °C and the coldest night fell to 6.9 °C, and the wettest single day dropped 36 mm — roughly 35% of the month's rain in one day.

December is moderately variable: 25 mm in the driest year against 234 mm in the wettest, around an average of 103 mm. Roughly two Decembers in three land near that average, and the third does something else entirely.

Wind sits around 18.2 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 78%, high enough to notice on the warm days without dominating them.

How December sits in the year

The month is on the way down: 3.7 °C cooler than November, with January dropping another 1.8 °C. The first week and the last are not the same trip.

Daylight in December

December sits at the dark end of Chaniá's year — 9.8 hours of daylight against 14.5 at midsummer, holding steady all month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

Sea temperature

The sea sits at about 18.5 °C in December — swimmable, but it takes a moment to commit. The sea peaks at 25.9 °C in August and bottoms out at 15.7 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

December in Chaniá versus nearby

If Chaniá is one option among several, the nearby comparison is worth making. Firá is close enough to be a coin toss — within a degree on temperature, 3 days less rain. Kalamata is close enough to be a coin toss — within a degree on temperature, 3 days less rain.

So: December is a compromise. June is 37 points better and is what Chaniá is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Chaniá

See all twelve months in Chaniá, or where else to go in December.