| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 12° | — | 19mm | 4.9 | 65 |
| February | 14.8° | — | 24.5mm | 5.4 | 73 |
| March | 20.6° | — | 22.8mm | 4.8 | 90 |
| April | 25.6° | — | 19.8mm | 4.8 | 90 |
| May | 31.2° | 15.6° | 9.7mm | 3.2 | 77 |
| June | 35.9° | 17.7° | 0.6mm | 0.4 | 64 |
| July | 36.5° | 19.8° | 1.8mm | 0.1 | 62 |
| August | 34.4° | 16.6° | 3.1mm | 0.2 | 70 |
| September | 32° | 10.6° | 1.5mm | 0.2 | 80 |
| October | 27.1° | 8.7° | 2.2mm | 0.7 | 98 |
| November | 19.4° | — | 7.6mm | 2.6 | 93 |
| December | 15° | — | 12.1mm | 2.8 | 78 |
January in Bīrjand averages a daily high of 12°C. Expect roughly 4.9 wet days totalling 19mm. Generally workable, with some weather to plan around.
February in Bīrjand averages a daily high of 14.8°C. Expect roughly 5.4 wet days totalling 24.5mm. Generally workable, with some weather to plan around.
March in Bīrjand averages a daily high of 20.6°C. Expect roughly 4.8 wet days totalling 22.8mm. Comfortable conditions for being outdoors all day.
April in Bīrjand averages a daily high of 25.6°C. Expect roughly 4.8 wet days totalling 19.8mm. Comfortable conditions for being outdoors all day.
May in Bīrjand averages a daily high of 31.2°C with nights around 15.6°C. Expect roughly 3.2 wet days totalling 9.7mm. Comfortable conditions for being outdoors all day.
June in Bīrjand averages a daily high of 35.9°C with nights around 17.7°C. Rain is rare — about 0.4 wet days and 0.6mm across the month. Generally workable, with some weather to plan around.
July in Bīrjand averages a daily high of 36.5°C with nights around 19.8°C. Rain is rare — about 0.1 wet days and 1.8mm across the month. Generally workable, with some weather to plan around.
August in Bīrjand averages a daily high of 34.4°C with nights around 16.6°C. Rain is rare — about 0.2 wet days and 3.1mm across the month. Generally workable, with some weather to plan around.
September in Bīrjand averages a daily high of 32°C with nights around 10.6°C. Rain is rare — about 0.2 wet days and 1.5mm across the month. Comfortable conditions for being outdoors all day.
October in Bīrjand averages a daily high of 27.1°C with nights around 8.7°C. Rain is rare — about 0.7 wet days and 2.2mm across the month. Comfortable conditions for being outdoors all day.
November in Bīrjand averages a daily high of 19.4°C. Rain is rare — about 2.6 wet days and 7.6mm across the month. Comfortable conditions for being outdoors all day.
December in Bīrjand averages a daily high of 15°C. Rain is rare — about 2.8 wet days and 12.1mm 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. Bīrjand peaks at 98.
Based on 30 years of records, March–April scores highest for comfort in Bīrjand, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 36.5°C.
February is the wettest, averaging 24.5mm of rain across roughly 5.4 wet days.
January is the coolest month, with average daily highs around 12°C.