| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 11.5° | 2.1° | 33mm | 8.7 | 55 |
| February | 12.4° | 2.7° | 28mm | 7.6 | 60 |
| March | 16.3° | 5.2° | 36.1mm | 8.8 | 71 |
| April | 20.5° | 7.7° | 36.8mm | 7.1 | 86 |
| May | 25.9° | 11.4° | 40.1mm | 7.2 | 86 |
| June | 31.7° | 16.8° | 19.9mm | 3.6 | 74 |
| July | 36.1° | 20.5° | 7.5mm | 2 | 60 |
| August | 34.9° | 19.4° | 11.2mm | 3.3 | 62 |
| September | 28.3° | 15.5° | 32.6mm | 6.1 | 83 |
| October | 23.8° | 11.8° | 27mm | 6 | 88 |
| November | 16.3° | 6.5° | 36.5mm | 7.8 | 73 |
| December | 12.1° | 3.5° | 33.1mm | 8.4 | 58 |
January in Bordj Bou Arreridj averages a daily high of 11.5°C with nights around 2.1°C. Expect roughly 8.7 wet days totalling 33mm. Generally workable, with some weather to plan around.
February in Bordj Bou Arreridj averages a daily high of 12.4°C with nights around 2.7°C. Expect roughly 7.6 wet days totalling 28mm. Generally workable, with some weather to plan around.
March in Bordj Bou Arreridj averages a daily high of 16.3°C with nights around 5.2°C. Expect roughly 8.8 wet days totalling 36.1mm. Generally workable, with some weather to plan around.
April in Bordj Bou Arreridj averages a daily high of 20.5°C with nights around 7.7°C. Expect roughly 7.1 wet days totalling 36.8mm. Comfortable conditions for being outdoors all day.
May in Bordj Bou Arreridj averages a daily high of 25.9°C with nights around 11.4°C. Expect roughly 7.2 wet days totalling 40.1mm. Comfortable conditions for being outdoors all day.
June in Bordj Bou Arreridj averages a daily high of 31.7°C with nights around 16.8°C. Expect roughly 3.6 wet days totalling 19.9mm. Generally workable, with some weather to plan around.
July in Bordj Bou Arreridj averages a daily high of 36.1°C with nights around 20.5°C. Rain is rare — about 2 wet days and 7.5mm across the month. Generally workable, with some weather to plan around.
August in Bordj Bou Arreridj averages a daily high of 34.9°C with nights around 19.4°C. Expect roughly 3.3 wet days totalling 11.2mm. Generally workable, with some weather to plan around.
September in Bordj Bou Arreridj averages a daily high of 28.3°C with nights around 15.5°C. Expect roughly 6.1 wet days totalling 32.6mm. Comfortable conditions for being outdoors all day.
October in Bordj Bou Arreridj averages a daily high of 23.8°C with nights around 11.8°C. Expect roughly 6 wet days totalling 27mm. Comfortable conditions for being outdoors all day.
November in Bordj Bou Arreridj averages a daily high of 16.3°C with nights around 6.5°C. Expect roughly 7.8 wet days totalling 36.5mm. Generally workable, with some weather to plan around.
December in Bordj Bou Arreridj averages a daily high of 12.1°C with nights around 3.5°C. Expect roughly 8.4 wet days totalling 33.1mm. Generally workable, with some weather to plan around.
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. Bordj Bou Arreridj peaks at 88.
Based on 30 years of records, April–May scores highest for comfort in Bordj Bou Arreridj, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 36.1°C.
May is the wettest, averaging 40.1mm of rain across roughly 7.2 wet days.
January is the coolest month, with average daily highs around 11.5°C.