| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 10° | 1.6° | 86.8mm | 14.2 | 39 |
| February | 11.7° | 2.7° | 76.6mm | 12.2 | 49 |
| March | 14.2° | 3.5° | 75.3mm | 13.4 | 55 |
| April | 19.3° | 6.9° | 57.2mm | 9.4 | 79 |
| May | 24.7° | 11.9° | 36.6mm | 7.9 | 84 |
| June | 29.1° | 16.6° | 41.8mm | 6.3 | 79 |
| July | 31.9° | 18.7° | 11.9mm | 2.2 | 76 |
| August | 31.8° | 19.1° | 14.2mm | 2.5 | 76 |
| September | 27.8° | 15.3° | 52.1mm | 6.8 | 83 |
| October | 22.1° | 10.4° | 83.8mm | 9.7 | 81 |
| November | 16.7° | 5.8° | 73.9mm | 10.2 | 69 |
| December | 11.3° | 3.9° | 96.1mm | 12.6 | 47 |
January in Yalova averages a daily high of 10°C with nights around 1.6°C. Expect roughly 14.2 wet days totalling 86.8mm. Demanding conditions — pack for it and plan indoor options.
February in Yalova averages a daily high of 11.7°C with nights around 2.7°C. Expect roughly 12.2 wet days totalling 76.6mm. Demanding conditions — pack for it and plan indoor options.
March in Yalova averages a daily high of 14.2°C with nights around 3.5°C. Expect roughly 13.4 wet days totalling 75.3mm. Generally workable, with some weather to plan around.
April in Yalova averages a daily high of 19.3°C with nights around 6.9°C. Expect roughly 9.4 wet days totalling 57.2mm. Comfortable conditions for being outdoors all day.
May in Yalova averages a daily high of 24.7°C with nights around 11.9°C. Expect roughly 7.9 wet days totalling 36.6mm. Comfortable conditions for being outdoors all day.
June in Yalova averages a daily high of 29.1°C with nights around 16.6°C. Expect roughly 6.3 wet days totalling 41.8mm. Comfortable conditions for being outdoors all day.
July in Yalova averages a daily high of 31.9°C with nights around 18.7°C. Rain is rare — about 2.2 wet days and 11.9mm across the month. Comfortable conditions for being outdoors all day.
August in Yalova averages a daily high of 31.8°C with nights around 19.1°C. Rain is rare — about 2.5 wet days and 14.2mm across the month. Comfortable conditions for being outdoors all day.
September in Yalova averages a daily high of 27.8°C with nights around 15.3°C. Expect roughly 6.8 wet days totalling 52.1mm. Comfortable conditions for being outdoors all day.
October in Yalova averages a daily high of 22.1°C with nights around 10.4°C. Expect roughly 9.7 wet days totalling 83.8mm. Comfortable conditions for being outdoors all day.
November in Yalova averages a daily high of 16.7°C with nights around 5.8°C. Expect roughly 10.2 wet days totalling 73.9mm. Generally workable, with some weather to plan around.
December in Yalova averages a daily high of 11.3°C with nights around 3.9°C. Expect roughly 12.6 wet days totalling 96.1mm. Demanding conditions — pack for it and plan indoor options.
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. Yalova peaks at 84.
Based on 30 years of records, April–October scores highest for comfort in Yalova, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 31.9°C.
December is the wettest, averaging 96.1mm of rain across roughly 12.6 wet days.
January is the coolest month, with average daily highs around 10°C.