Climate averages 1991–2020
Tatvan weather
in May.
A mild, moderately wet month: the 5th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Tatvan: daytime highs average 17.3°C and nights cool to about 8.5°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 84 mm of rain on roughly 15 days, which makes May a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 15 min on an average May day.
The nearest other city in this atlas is Siirt (69 km away). In May its highs average 23.0°C, 5.7°C warmer than Tatvan, with 60 mm of rain.
Among the 138 cities listed in Turkey, Tatvan ranks 133rd of 138 for the warmest May highs and joint 121st of 138 for the driest May (rainfall, lowest first). The mean May high of those 138 cities is 22.4°C; Tatvan is 5.1°C cooler than that mean.
From May to June, average highs rise by 6.5°C to 23.8°C, and monthly rainfall falls from 84 mm to 23 mm.
The annual picture
May in context
Monthly precipitation
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
Tatvan climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 0.2°C-4.8°C | -4.8°C | 96 | 11.7 | 9.810 h |
| February | 1.1°C-4.2°C | -4.2°C | 103 | 11.2 | 10.711 h |
| March | 5.1°C-0.9°C | -0.9°C | 122 | 14.3 | 11.912 h |
| April | 10.6°C3.3°C | 3.3°C | 118 | 15.8 | 13.213 h |
| May, selected | 17.3°C8.5°C | 8.5°C | 84 | 15.0 | 14.214 h |
| June | 23.8°C13.5°C | 13.5°C | 23 | 5.3 | 14.815 h |
| July | 28.7°C17.2°C | 17.2°C | 8.0 | 2.3 | 14.615 h |
| August | 29.0°C18.0°C | 18.0°C | 4.5 | 1.2 | 13.714 h |
| September | 24.0°C14.4°C | 14.4°C | 14 | 2.6 | 12.512 h |
| October | 16.8°C9.1°C | 9.1°C | 57 | 8.1 | 11.211 h |
| November | 8.6°C2.4°C | 2.4°C | 73 | 8.8 | 10.110 h |
| December | 2.6°C-2.5°C | -2.5°C | 95 | 10.7 | 9.510 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
- Siirt in MayTurkey · 69 kmHigh 23.0°C · Low 9.9°C · 60 mm rain
- Muş in MayTurkey · 74 kmHigh 19.0°C · Low 8.5°C · 132 mm rain
- Patnos in MayTurkey · 95 kmHigh 18.3°C · Low 5.0°C · 89 mm rain
- Van in MayTurkey · 96 kmHigh 17.7°C · Low 5.6°C · 58 mm rain
- Erciş in MayTurkey · 111 kmHigh 16.4°C · Low 9.0°C · 58 mm rain
- Batman in MayTurkey · 121 kmHigh 25.8°C · Low 13.8°C · 57 mm rain
- Cizre in MayTurkey · 129 kmHigh 28.3°C · Low 13.7°C · 38 mm rain
- Silopi in MayTurkey · 140 kmHigh 27.5°C · Low 12.3°C · 33 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 Tatvan) is explained once on the Tatvan year overview and on the Sources, method and limits page.