Climate averages 1991–2020
Giresun weather
in May.
A mild, wet month: the 5th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Giresun: daytime highs average 19.8°C and nights cool to about 12.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 110 mm of rain on roughly 14 days, which makes May a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 27 min on an average May day.
The nearest other city in this atlas is Ordu (42 km away). In May its highs average 18.5°C, 1.2°C cooler than Giresun, with 100 mm of rain.
Among the 138 cities listed in Turkey, Giresun ranks joint 110th of 138 for the warmest May highs and joint 130th of 138 for the driest May (rainfall, lowest first). The mean May high of those 138 cities is 22.4°C; Giresun is 2.7°C cooler than that mean.
From May to June, average highs rise by 2.8°C to 22.6°C, and monthly rainfall falls from 110 mm to 99 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Giresun climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.0°C2.8°C | 2.8°C | 131 | 15.8 | 9.610 h |
| February | 9.5°C2.4°C | 2.4°C | 99 | 13.7 | 10.611 h |
| March | 12.3°C4.6°C | 4.6°C | 119 | 15.6 | 11.912 h |
| April | 16.3°C8.0°C | 8.0°C | 106 | 14.1 | 13.313 h |
| May, selected | 19.8°C12.4°C | 12.4°C | 110 | 13.8 | 14.414 h |
| June | 22.6°C16.6°C | 16.6°C | 99 | 12.4 | 15.115 h |
| July | 24.6°C19.5°C | 19.5°C | 82 | 12.1 | 14.815 h |
| August | 25.0°C20.2°C | 20.2°C | 102 | 13.7 | 13.814 h |
| September | 22.4°C17.2°C | 17.2°C | 176 | 14.6 | 12.513 h |
| October | 19.6°C13.7°C | 13.7°C | 213 | 16.1 | 11.211 h |
| November | 15.4°C8.8°C | 8.8°C | 149 | 13.0 | 9.910 h |
| December | 11.3°C5.0°C | 5.0°C | 131 | 14.6 | 9.39 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Ordu in MayTurkey · 42 kmHigh 18.5°C · Low 11.9°C · 100 mm rain
- Fatsa in MayTurkey · 76 kmHigh 19.0°C · Low 12.3°C · 112 mm rain
- Ünye in MayTurkey · 95 kmHigh 18.7°C · Low 12.6°C · 44 mm rain
- Erzincan in MayTurkey · 161 kmHigh 19.6°C · Low 8.7°C · 97 mm rain
- Tokat in MayTurkey · 169 kmHigh 21.5°C · Low 9.6°C · 102 mm rain
- Sivas in MayTurkey · 174 kmHigh 19.0°C · Low 6.9°C · 56 mm rain
- Samsun in MayTurkey · 177 kmHigh 19.1°C · Low 11.5°C · 79 mm rain
- Rize in MayTurkey · 180 kmHigh 18.4°C · Low 12.1°C · 152 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Giresun) is explained once on the Giresun year overview and on the Sources, method and limits page.