Climate Change Chart of Istanbul, Türkiye
Comprehensive Climate Change Chart of Istanbul, Türkiye: Monthly Averages and Impact Trends
For Istanbul, Türkiye, the climate data compare 1940–1950 with 2013–2023.
The monthly mean temperature difference, averaged across calendar months, was +1.28 °C compared with the earlier reference period; this is an unweighted summary of monthly means, not a day-weighted annual average or a measure of daytime highs.
Overview of climate changes
Temperature changes
The monthly mean temperature difference, averaged across calendar months, was +1.28 °C compared with the earlier reference period; this is an unweighted summary of monthly means, not a day-weighted annual average or a measure of daytime highs. The largest monthly increase was in March, at +1.96 °C, so that month stands out within the supplied temperature comparisons without implying that every month changed by the same amount.
Changes in rainfall
Mean daily rainfall, averaged across calendar months, had a difference of +0.25 mm/day; this unweighted summary describes the monthly means rather than annual totals or conditions on every day. The largest monthly increase was in June, with a difference of +0.74 mm/day, while the largest monthly decrease was in December, with a difference of -0.53 mm/day. These contrasting month-specific differences show why the overall mean should not be taken to describe rainfall changes in every part of the year.
Changes in snowfall
Mean daily snowfall, averaged across calendar months, had a difference of -0.36 mm/day compared with the earlier reference period. This unweighted summary of monthly means is not a monthly snowfall total and does not imply the same difference in every month. The largest monthly decrease was in January, with a difference of -1.87 mm/day, while the largest monthly increase was in December, with a difference of +0.36 mm/day. Together, these contrasting monthly comparisons add context to the overall mean without describing snowfall on individual days.
Changes in sunshine duration
Mean daily sunshine duration had an unweighted, across-calendar-month difference of -0.09 hours/day; this summarizes monthly means, not a change shared by every month. The largest monthly increase was in December, at +0.48 hours/day, whereas the largest monthly decrease was in June, at -0.51 hours/day. These daily-hour differences describe averages, not the sunshine received on any particular day.
Climate Change Data Overview for Istanbul, Türkiye
Explore the comprehensive climate change data for Istanbul, Türkiye. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes influenced by climate change, helping you understand the unique weather patterns of this region.
Temperature °C
| Month | ⌀ 1940 - 1950 | ⌀ 2013 - 2023 | +/- |
|---|---|---|---|
| Jan | 5.05 | 6.76 | 1.71 |
| Feb | 5.70 | 7.56 | 1.85 |
| Mar | 6.84 | 8.80 | 1.96 |
| Apr | 10.87 | 12.24 | 1.37 |
| May | 15.88 | 17.35 | 1.47 |
| Jun | 21.10 | 21.86 | 0.76 |
| Jul | 23.47 | 24.72 | 1.26 |
| Aug | 23.80 | 25.37 | 1.57 |
| Sep | 20.76 | 21.84 | 1.08 |
| Oct | 16.32 | 16.77 | 0.45 |
| Nov | 12.38 | 13.25 | 0.87 |
| Dec | 7.93 | 8.94 | 1.01 |
| ⌀ Month | 14.17 | 15.45 | 1.28 |
Sunshine (h) / day
| Month | ⌀ 1940 - 1950 | ⌀ 2013 - 2023 | +/- |
|---|---|---|---|
| Jan | 5.16 | 5.41 | 0.25 |
| Feb | 6.64 | 6.61 | -0.03 |
| Mar | 8.14 | 7.64 | -0.50 |
| Apr | 10.15 | 10.07 | -0.08 |
| May | 11.66 | 11.58 | -0.08 |
| Jun | 13.35 | 12.84 | -0.51 |
| Jul | 13.32 | 13.27 | -0.04 |
| Aug | 12.44 | 12.13 | -0.31 |
| Sep | 10.71 | 10.56 | -0.15 |
| Oct | 8.29 | 7.97 | -0.32 |
| Nov | 6.36 | 6.52 | 0.16 |
| Dec | 4.98 | 5.46 | 0.48 |
| ⌀ Month | 9.27 | 9.17 | -0.09 |
Rain (mm) / day
| Month | ⌀ 1940 - 1950 | ⌀ 2013 - 2023 | +/- |
|---|---|---|---|
| Jan | 2.30 | 2.75 | 0.45 |
| Feb | 2.36 | 2.27 | -0.09 |
| Mar | 2.05 | 2.41 | 0.36 |
| Apr | 1.46 | 1.70 | 0.24 |
| May | 0.82 | 1.52 | 0.70 |
| Jun | 0.75 | 1.49 | 0.74 |
| Jul | 0.78 | 0.70 | -0.08 |
| Aug | 0.24 | 0.51 | 0.27 |
| Sep | 1.11 | 1.56 | 0.44 |
| Oct | 1.84 | 2.07 | 0.22 |
| Nov | 2.45 | 2.68 | 0.23 |
| Dec | 3.04 | 2.51 | -0.53 |
| ⌀ Month | 1.60 | 1.85 | 0.25 |
Snow (mm) / day
| Month | ⌀ 1940 - 1950 | ⌀ 2013 - 2023 | +/- |
|---|---|---|---|
| Jan | 5.65 | 3.78 | -1.87 |
| Feb | 3.23 | 2.13 | -1.09 |
| Mar | 1.58 | 0.43 | -1.15 |
| Apr | 0.01 | 0.00 | -0.01 |
| May | 0.00 | 0.00 | 0.00 |
| Jun | 0.00 | 0.00 | 0.00 |
| Jul | 0.00 | 0.00 | 0.00 |
| Aug | 0.00 | 0.00 | 0.00 |
| Sep | 0.00 | 0.00 | 0.00 |
| Oct | 0.00 | 0.00 | 0.00 |
| Nov | 0.61 | 0.06 | -0.55 |
| Dec | 0.84 | 1.20 | 0.36 |
| ⌀ Month | 0.99 | 0.63 | -0.36 |
