| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 30.9° | 18.8° | 4.5mm | 0.6 | 83 |
| February | 33.3° | 21.4° | 24mm | 2.1 | 71 |
| March | 35.5° | 24° | 37.3mm | 4.6 | 57 |
| April | 36.4° | 25.6° | 62.7mm | 7 | 48 |
| May | 35.2° | 25.4° | 144.5mm | 13 | 41 |
| June | 34.8° | 25.5° | 118mm | 10.8 | 47 |
| July | 33.9° | 25.2° | 146.5mm | 16.8 | 42 |
| August | 33.5° | 24.8° | 157mm | 17.6 | 44 |
| September | 32.3° | 24.2° | 261.5mm | 20.5 | 49 |
| October | 31.5° | 23.5° | 117.7mm | 10.5 | 61 |
| November | 31° | 21.9° | 21.6mm | 3.8 | 76 |
| December | 29.7° | 19.5° | 3.3mm | 0.6 | 88 |
January in Nakhon Ratchasima averages a daily high of 30.9°C with nights around 18.8°C. Rain is rare — about 0.6 wet days and 4.5mm across the month. Comfortable conditions for being outdoors all day.
February in Nakhon Ratchasima averages a daily high of 33.3°C with nights around 21.4°C. Rain is rare — about 2.1 wet days and 24mm across the month. Generally workable, with some weather to plan around.
March in Nakhon Ratchasima averages a daily high of 35.5°C with nights around 24°C. Expect roughly 4.6 wet days totalling 37.3mm. Generally workable, with some weather to plan around.
April in Nakhon Ratchasima averages a daily high of 36.4°C with nights around 25.6°C. Expect roughly 7 wet days totalling 62.7mm. Demanding conditions — pack for it and plan indoor options.
May in Nakhon Ratchasima averages a daily high of 35.2°C with nights around 25.4°C. Expect roughly 13 wet days totalling 144.5mm. Demanding conditions — pack for it and plan indoor options.
June in Nakhon Ratchasima averages a daily high of 34.8°C with nights around 25.5°C. Expect roughly 10.8 wet days totalling 118mm. Demanding conditions — pack for it and plan indoor options.
July in Nakhon Ratchasima averages a daily high of 33.9°C with nights around 25.2°C. Expect roughly 16.8 wet days totalling 146.5mm. Demanding conditions — pack for it and plan indoor options.
August in Nakhon Ratchasima averages a daily high of 33.5°C with nights around 24.8°C. Expect roughly 17.6 wet days totalling 157mm. Demanding conditions — pack for it and plan indoor options.
September in Nakhon Ratchasima averages a daily high of 32.3°C with nights around 24.2°C. Expect roughly 20.5 wet days totalling 261.5mm. Demanding conditions — pack for it and plan indoor options.
October in Nakhon Ratchasima averages a daily high of 31.5°C with nights around 23.5°C. Expect roughly 10.5 wet days totalling 117.7mm. Generally workable, with some weather to plan around.
November in Nakhon Ratchasima averages a daily high of 31°C with nights around 21.9°C. Expect roughly 3.8 wet days totalling 21.6mm. Comfortable conditions for being outdoors all day.
December in Nakhon Ratchasima averages a daily high of 29.7°C with nights around 19.5°C. Rain is rare — about 0.6 wet days and 3.3mm across the month. Comfortable conditions for being outdoors all day.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Nakhon Ratchasima peaks at 88.
Based on 30 years of records, December–January scores highest for comfort in Nakhon Ratchasima, balancing daytime temperature against rainfall.
April is the warmest, averaging a daily high of 36.4°C.
September is the wettest, averaging 261.5mm of rain across roughly 20.5 wet days.
December is the coolest month, with average daily highs around 29.7°C.