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How the score works

One number out of 100, blended from the four factors below: comfort, crowds, prices and weather. Higher means go now. Lower means queues, rain and paying more for the privilege.

Sweat: optional. A rare luxury.

Factor breakdown

Crowds

How many other people had the same clever idea. Built from researched monthly visitor patterns, then pushed harder for public holidays, school breaks and big events.

55

Weather

The weather that cancels plans rather than just dampens them. Built from monthly climate baselines plus researched storm, typhoon, smoke and snow periods.

81

Prices

How much the dates themselves cost you. Built from researched monthly demand, with the same holiday and event surges that drive the crowds, because airlines can read a calendar too.

57

Comfort

Whether you will enjoy being outside or merely endure it. Built from average highs and lows, humidity and rain risk.

84

Climate in December

Avg low
21°C
Avg high
31°C
Rain risk
low
Humidity
comfortable

Better dates

Dec 1 - 3

3 day window

Ayutthaya Cool-Season Heritage Peak overlaps this window, with more comfortable conditions and better weather.

Comfort Weather

Dec 1 - 7

7 day window

Ayutthaya Cool-Season Heritage Peak overlaps this window, with more comfortable conditions and better weather.

Comfort Weather

Tougher dates

Dec 25 - 31

7 day window

Ayutthaya Cool-Season Heritage Peak overlaps this window, with heavier crowds and greater price pressure.

Crowds Prices

Dec 29 - 31

3 day window

Ayutthaya Cool-Season Heritage Peak overlaps this window, with heavier crowds and greater price pressure.

Crowds Prices

What shapes December 2026

31 days

Ayutthaya Cool-Season Heritage Peak

Dec 1-31

Seasonal peak

17 days

Year-End Festive Demand

Dec 15-31

Seasonal peak

1 day

Constitution Day Holiday

Dec 10

Public holiday

1 day

New Year'S Eve Holiday

Dec 31

Public holiday

We can't control the weather.But we can help you pick the good days.