Weather in Nakhon Ratchasima in December
Thailand · 20-year averages, December
Prime time. If you get to pick your dates, December is the one. Highs average 29.2 °C, lows 17.4 °C, and rain falls on 1 days — nothing in the month is working against you.
December is the highest-scoring month of the twelve. The nearest rival is November, and the month at the other end of the year is May.
Rain falls on only 1 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 29.2 °C days and 17.4 °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: 13 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest December day reached 35.4 °C and the coldest night fell to 8 °C.
December is dependably dry, and that reliability is the point: across the twenty years measured, the wettest December on record still only managed 24 mm, and the driest managed 0 mm. There is no meaningful variability to plan around, which makes this one of the few months anywhere that you can build a fixed outdoor itinerary against without a fallback. The wettest single day in twenty years of Decembers brought 9 mm. Rain simply is not the variable that decides this trip — heat, crowds and cost are.
Wind is light at 8.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 71%.
How December sits in the year
Temperatures hold steady either side: 29.2 °C in November, 29.2 here, 30.9 in January. Nothing about the timing within the month matters much.
Daylight in December
Nakhon Ratchasima sits close enough to the equator that daylight barely moves all year — 11.2 hours in December, against a range of just 1.8 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.
An inland climate
Despite being inland, the year stays fairly even: 18.7 °C between the year's warmest afternoons and coldest nights.
How busy it gets
Peak season. Expect the highest prices of the year and to be booking well ahead.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
December in Nakhon Ratchasima versus nearby
If Nakhon Ratchasima is one option among several, the nearby comparison is worth making. Lat Krabang is the weaker option in December — within a degree on temperature, 2 days more rain. Bangkok is the weaker option in December — within a degree on temperature, 1 day more rain.
So: December is the answer for Nakhon Ratchasima. If it is booked out or priced out, November is the next best thing at 7 points behind, and May is the month to keep off the shortlist.
Every month in Nakhon Ratchasima
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 30.9 | 17.7 | 2 | 10 | 63 | 11.3 | 79 |
| February | 34 | 20.5 | 3 | 10 | 57 | 11.6 | 64 |
| March | 35.6 | 23.2 | 8 | 49 | 58 | 12 | 47 |
| April | 36.1 | 24.8 | 12 | 77 | 62 | 12.5 | 37 |
| May | 33.5 | 24.7 | 20 | 153 | 74 | 12.8 | 36 |
| June | 32 | 24.3 | 20 | 137 | 78 | 13 | 43 |
| July | 31.2 | 23.7 | 22 | 155 | 80 | 12.9 | 46 |
| August | 30.7 | 23.5 | 23 | 190 | 82 | 12.6 | 47 |
| September | 29.8 | 23.3 | 24 | 271 | 87 | 12.2 | 46 |
| October | 29.6 | 22.1 | 16 | 143 | 85 | 11.8 | 53 |
| November | 29.2 | 19.9 | 5 | 21 | 80 | 11.4 | 82 |
| December | 29.2 | 17.4 | 1 | 4 | 71 | 11.2 | 89 |
See all twelve months in Nakhon Ratchasima, or where else to go in December.
Planning the rest of the trip
- Flight time to Nakhon Ratchasima how long you are actually in the air
- Nakhon Ratchasima time zone and the difference from home
- Days until your trip count down to the departure date