| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 32.5° | 16.9° | 6.7mm | 0.7 | 77 |
| February | 34.8° | 20° | 17.2mm | 2.6 | 64 |
| March | 36.7° | 22.7° | 44.4mm | 4.9 | 51 |
| April | 37.5° | 24.2° | 77mm | 7.7 | 43 |
| May | 35.6° | 24.5° | 170.7mm | 16.8 | 36 |
| June | 34.4° | 24.6° | 152.9mm | 16.8 | 40 |
| July | 32.9° | 24.1° | 181.1mm | 20.7 | 46 |
| August | 32.5° | 23.9° | 221.5mm | 21.7 | 48 |
| September | 32.3° | 24.1° | 235.7mm | 21.1 | 49 |
| October | 32.8° | 23.5° | 75.7mm | 9.2 | 58 |
| November | 32.7° | 21.5° | 13mm | 2.6 | 72 |
| December | 31.7° | 17.9° | 2.6mm | 1 | 79 |
January in Phetchabun averages a daily high of 32.5°C with nights around 16.9°C. Rain is rare — about 0.7 wet days and 6.7mm across the month. Comfortable conditions for being outdoors all day.
February in Phetchabun averages a daily high of 34.8°C with nights around 20°C. Rain is rare — about 2.6 wet days and 17.2mm across the month. Generally workable, with some weather to plan around.
March in Phetchabun averages a daily high of 36.7°C with nights around 22.7°C. Expect roughly 4.9 wet days totalling 44.4mm. Demanding conditions — pack for it and plan indoor options.
April in Phetchabun averages a daily high of 37.5°C with nights around 24.2°C. Expect roughly 7.7 wet days totalling 77mm. Demanding conditions — pack for it and plan indoor options.
May in Phetchabun averages a daily high of 35.6°C with nights around 24.5°C. Expect roughly 16.8 wet days totalling 170.7mm. Demanding conditions — pack for it and plan indoor options.
June in Phetchabun averages a daily high of 34.4°C with nights around 24.6°C. Expect roughly 16.8 wet days totalling 152.9mm. Demanding conditions — pack for it and plan indoor options.
July in Phetchabun averages a daily high of 32.9°C with nights around 24.1°C. Expect roughly 20.7 wet days totalling 181.1mm. Demanding conditions — pack for it and plan indoor options.
August in Phetchabun averages a daily high of 32.5°C with nights around 23.9°C. Expect roughly 21.7 wet days totalling 221.5mm. Demanding conditions — pack for it and plan indoor options.
September in Phetchabun averages a daily high of 32.3°C with nights around 24.1°C. Expect roughly 21.1 wet days totalling 235.7mm. Demanding conditions — pack for it and plan indoor options.
October in Phetchabun averages a daily high of 32.8°C with nights around 23.5°C. Expect roughly 9.2 wet days totalling 75.7mm. Generally workable, with some weather to plan around.
November in Phetchabun averages a daily high of 32.7°C with nights around 21.5°C. Rain is rare — about 2.6 wet days and 13mm across the month. Generally workable, with some weather to plan around.
December in Phetchabun averages a daily high of 31.7°C with nights around 17.9°C. Rain is rare — about 1 wet days and 2.6mm 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. Phetchabun peaks at 79.
Based on 30 years of records, November–January scores highest for comfort in Phetchabun, balancing daytime temperature against rainfall.
April is the warmest, averaging a daily high of 37.5°C.
September is the wettest, averaging 235.7mm of rain across roughly 21.1 wet days.
December is the coolest month, with average daily highs around 31.7°C.