Pattaya Weather in December
Pattaya in December: average high 30.5°C, low 23.1°C, 26.4 mm of rain on 6.1 days (2016-2025 averages).
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In December, Pattaya averages a daytime high of 30.5°C and an overnight low of 23.1°C. Across 2016-2025, the month brought 26.4 mm of rain on 6.1 days with more than 1 mm of precipitation, with average relative humidity of 67%. Compared with the other months in the same dataset, December is drier than the average month and close to the average month for daytime heat.
These figures are averages computed from ten years of daily Open-Meteo (ERA5 reanalysis) data for the grid cell nearest Pattaya, not readings from a single weather station. Any one year can run wetter, drier, hotter or cooler than the average.
Pattaya December climate at a glance
| Measure | December average (2016-2025) |
|---|---|
| Average daily high | 30.5°C |
| Average daily low | 23.1°C |
| Average monthly rainfall | 26.4 mm |
| Average rainy days (over 1 mm) | 6.1 |
| Average relative humidity | 67% |
What to pack for Pattaya in December
- A compact umbrella is enough — rainy days are the minority this month.
- Breathable, quick-drying clothing; humidity and daytime heat are part of every month in Pattaya.
- Sun protection (hat, sunglasses, reapplied sunscreen) for beach and boat days.
- A refillable water bottle for long days outdoors.
- Sandals or shoes that cope with wet pavement — street drainage can pool after heavy showers.
Beachfront hotels for December
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Things to do in December
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Frequently asked questions
Based on 2016-2025 data, the average daily high in December is 30.5°C and the average daily low is 23.1°C. That makes December close to the average month for daytime heat for daytime temperatures in Pattaya.
Over 2016-2025, December averaged 26.4 mm of rain across 6.1 days with more than 1 mm of precipitation. That is drier than the average month. These are grid-cell reanalysis values, so individual years can differ noticeably.
December has fewer rainy days (6.1 on average) and average humidity of 67%, which is less humid than the average month. Beach and outdoor plans are easier to keep, though showers can still occur. See our month-by-month guide for how it compares with other months.
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Last updated: October 14, 2026
Reviewed by Pattaya Knowledge Editors