| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 31.4° | 18.2° | 2.4mm | 0.9 | 81 |
| February | 33.4° | 20.7° | 18.7mm | 2.1 | 70 |
| March | 35.8° | 23° | 23.8mm | 3 | 59 |
| April | 37.1° | 25.3° | 58.2mm | 4.7 | 50 |
| May | 35.7° | 24.1° | 174.5mm | 13.6 | 38 |
| June | 34.3° | 24.7° | 180.2mm | 16.3 | 41 |
| July | 33.3° | 24.4° | 246.1mm | 20.1 | 45 |
| August | 32.9° | 24.3° | 262.1mm | 21.3 | 46 |
| September | 32.6° | 24.1° | 302.7mm | 21.4 | 48 |
| October | 32.9° | 23.9° | 149.6mm | 12.6 | 51 |
| November | 32.4° | 21.9° | 39.8mm | 4.6 | 69 |
| December | 31° | 19.2° | 18mm | 1 | 82 |
January in Phitsanulok averages a daily high of 31.4°C with nights around 18.2°C. Rain is rare — about 0.9 wet days and 2.4mm across the month. Comfortable conditions for being outdoors all day.
February in Phitsanulok averages a daily high of 33.4°C with nights around 20.7°C. Rain is rare — about 2.1 wet days and 18.7mm across the month. Generally workable, with some weather to plan around.
March in Phitsanulok averages a daily high of 35.8°C with nights around 23°C. Expect roughly 3 wet days totalling 23.8mm. Generally workable, with some weather to plan around.
April in Phitsanulok averages a daily high of 37.1°C with nights around 25.3°C. Expect roughly 4.7 wet days totalling 58.2mm. Demanding conditions — pack for it and plan indoor options.
May in Phitsanulok averages a daily high of 35.7°C with nights around 24.1°C. Expect roughly 13.6 wet days totalling 174.5mm. Demanding conditions — pack for it and plan indoor options.
June in Phitsanulok averages a daily high of 34.3°C with nights around 24.7°C. Expect roughly 16.3 wet days totalling 180.2mm. Demanding conditions — pack for it and plan indoor options.
July in Phitsanulok averages a daily high of 33.3°C with nights around 24.4°C. Expect roughly 20.1 wet days totalling 246.1mm. Demanding conditions — pack for it and plan indoor options.
August in Phitsanulok averages a daily high of 32.9°C with nights around 24.3°C. Expect roughly 21.3 wet days totalling 262.1mm. Demanding conditions — pack for it and plan indoor options.
September in Phitsanulok averages a daily high of 32.6°C with nights around 24.1°C. Expect roughly 21.4 wet days totalling 302.7mm. Demanding conditions — pack for it and plan indoor options.
October in Phitsanulok averages a daily high of 32.9°C with nights around 23.9°C. Expect roughly 12.6 wet days totalling 149.6mm. Demanding conditions — pack for it and plan indoor options.
November in Phitsanulok averages a daily high of 32.4°C with nights around 21.9°C. Expect roughly 4.6 wet days totalling 39.8mm. Generally workable, with some weather to plan around.
December in Phitsanulok averages a daily high of 31°C with nights around 19.2°C. Rain is rare — about 1 wet days and 18mm 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. Phitsanulok peaks at 82.
Based on 30 years of records, December–January scores highest for comfort in Phitsanulok, balancing daytime temperature against rainfall.
April is the warmest, averaging a daily high of 37.1°C.
September is the wettest, averaging 302.7mm of rain across roughly 21.4 wet days.
December is the coolest month, with average daily highs around 31°C.