| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 31.2° | — | — | — | 77 |
| February | 30.9° | 24.1° | — | — | 78 |
| March | 31.6° | — | — | — | 76 |
| April | 32.1° | 25.8° | — | — | 74 |
| May | 32.4° | 24.7° | — | — | 72 |
| June | 32.1° | 23.1° | — | — | 74 |
| July | 31.9° | 23.3° | — | — | 74 |
| August | 32° | 24° | — | — | 74 |
| September | 32.6° | 24° | — | — | 72 |
| October | 32.9° | — | — | — | 70 |
| November | 32.5° | — | — | — | 72 |
| December | 32° | — | — | — | 74 |
January in Slawi averages a daily high of 31.2°C. Comfortable conditions for being outdoors all day.
February in Slawi averages a daily high of 30.9°C with nights around 24.1°C. Comfortable conditions for being outdoors all day.
March in Slawi averages a daily high of 31.6°C. Comfortable conditions for being outdoors all day.
April in Slawi averages a daily high of 32.1°C with nights around 25.8°C. Generally workable, with some weather to plan around.
May in Slawi averages a daily high of 32.4°C with nights around 24.7°C. Generally workable, with some weather to plan around.
June in Slawi averages a daily high of 32.1°C with nights around 23.1°C. Generally workable, with some weather to plan around.
July in Slawi averages a daily high of 31.9°C with nights around 23.3°C. Generally workable, with some weather to plan around.
August in Slawi averages a daily high of 32°C with nights around 24°C. Generally workable, with some weather to plan around.
September in Slawi averages a daily high of 32.6°C with nights around 24°C. Generally workable, with some weather to plan around.
October in Slawi averages a daily high of 32.9°C. Generally workable, with some weather to plan around.
November in Slawi averages a daily high of 32.5°C. Generally workable, with some weather to plan around.
December in Slawi averages a daily high of 32°C. 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. Slawi peaks at 78.
Based on 30 years of records, Any time of year scores highest for comfort in Slawi, balancing daytime temperature against rainfall.
October is the warmest, averaging a daily high of 32.9°C.
January is the wettest, averaging —mm of rain across roughly — wet days.
February is the coolest month, with average daily highs around 30.9°C.