Bornova climate
Bornova (Turkey) has a hot-summer Mediterranean climate (Köppen Csa). The average temperature over the year is 17 °C63 °F, and about 636 mm25 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Bornova climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1152 | 235 | 643 | 1244.9 | 13 |
| Feb | 1355 | 337 | 846 | 933.6 | 9 |
| Mar | 1661 | 540 | 1051 | 612.4 | 5 |
| Apr | 2169 | 847 | 1558 | 481.9 | 0 |
| May | 2780 | 1356 | 2068 | 341.3 | 0 |
| Jun | 3392 | 1864 | 2678 | 180.7 | 0 |
| Jul | 38100 | 2169 | 2985 | 40.2 | 0 |
| Aug | 38100 | 2170 | 3085 | 40.2 | 0 |
| Sep | 3290 | 1762 | 2476 | 190.7 | 0 |
| Oct | 2577 | 1253 | 1865 | 512.0 | 0 |
| Nov | 1965 | 744 | 1355 | 793.1 | 2 |
| Dec | 1355 | 337 | 846 | 1024.0 | 10 |
| Year | 38100 | 235 | 1763 | 63625 | 39 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 84% | 66% | 2.1 | 9:45 |
| Feb | 82% | 67% | 2.8 | 10:42 |
| Mar | 78% | 61% | 4.2 | 11:51 |
| Apr | 71% | 54% | 5.5 | 13:09 |
| May | 62% | 44% | 6.7 | 14:15 |
| Jun | 50% | 25% | 7.6 | 14:50 |
| Jul | 41% | 9% | 7.9 | 14:36 |
| Aug | 41% | 11% | 7.1 | 13:39 |
| Sep | 49% | 24% | 5.5 | 12:23 |
| Oct | 61% | 40% | 3.9 | 11:07 |
| Nov | 72% | 50% | 2.6 | 10:01 |
| Dec | 81% | 63% | 1.9 | 9:29 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Bornova is like
The warmest month is August, with an average high of 38 °C100 °F and a low of 21 °C70 °F. The coldest is January, when highs average 11 °C52 °F and lows 2 °C35 °F. Seasons are strongly marked: the warmest month is on average 23.2 °C41.7 °F warmer than the coldest.
Annual precipitation is moderate at about 636 mm25 in. The wettest three-month stretch is December–February, which brings 50% of the annual total. Months with less than 20 mm0.8 in on average: June–September. The wettest month is January (124 mm4.9 in), the driest is July (4 mm0.2 in).
Relative humidity ranges from 41% in August to 84% in January. The clearest skies (lowest average cloud amount, 9%) are typical of July. Average wind speed near the ground ranges from 7 km/h (5 mph) in October to 11 km/h (7 mph) in July. Daylight lasts from about 9.5 hours in December to 14.8 hours in June.
Best time to visit Bornova
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and May and October: average highs of 21 °C69 °F to 27 °C80 °F with 34 mm1.3 in to 51 mm2.0 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 11 °C52 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Bornova
- Winter (December–February) — highs 1152 to 13 °C55 °F, lows 235 to 3 °C37 °F, about 106 mm4.2 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an umbrella or light rain jacket.
- Spring (March–May) — highs 1661 to 27 °C80 °F, lows 540 to 13 °C56 °F, about 48 mm1.9 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3392 to 38 °C100 °F, lows 1864 to 21 °C70 °F, about 9 mm0.3 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 1965 to 32 °C90 °F, lows 744 to 17 °C62 °F, about 50 mm2.0 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Bornova compares
Compared with İzmir, about 12 km to the southwest, Bornova has practically the same average temperature and receives a similar amount of precipitation. The difference is largest in July (2.2 °C3.9 °F warmer).
Of the 87 places in Turkey covered by World Climates, Bornova is the 23rd warmest by annual mean temperature and the 25th wettest by annual precipitation. See all of them on the Turkey climate page.
Places in other countries with the most similar temperature and rainfall pattern: Idlib (Syria, Csa), Aleppo (Syria, Csa) and Badajoz (Spain, Csa).
The same NASA POWER grid cell also contains Manisa (pop. 243,971) and Turgutlu (pop. 103,292). Their long-term averages in this dataset are essentially the same as for Bornova, so they do not have separate pages.
Nearby places
- İzmir 12 km · 17 °C63 °F · 646 mm25 in
- Salihli 79 km · 18 °C64 °F · 610 mm24 in
- Aydın 88 km · 19 °C65 °F · 685 mm27 in
- Nazilli 113 km · 18 °C65 °F · 685 mm27 in
- Balıkesir 142 km · 16 °C61 °F · 593 mm23 in
- Merkezefendi 175 km · 17 °C62 °F · 645 mm25 in
- Denizli 180 km · 17 °C62 °F · 566 mm22 in
- Uşak 190 km · 13 °C55 °F · 546 mm22 in
Frequently asked questions
What is the warmest month in Bornova?
August is the warmest month in Bornova, with an average high of 38 °C (100 °F) and an average low of 21 °C (70 °F).
What is the coldest month in Bornova?
January is the coldest month, with an average high of 11 °C (52 °F) and an average low of 2 °C (35 °F).
When does it rain the most in Bornova?
January is the wettest month with about 124 mm (4.9 in) of precipitation; July is the driest with about 4 mm (0.2 in).
What is the best time to visit Bornova?
Judging by long-term averages, the most comfortable months are April and May and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 249 m, while Bornova lies at about 125 m. Temperatures on this page were therefore adjusted by +0.8 °C1.5 °F using the standard lapse rate of 6.5 °C per 1,000 m.