Climate averages 1991–2020
Sumayl weather
in January.
A cool, moderately wet month: the coolest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cool month in Sumayl: daytime highs average 10.1°C and nights cool to about 0.6°C. By daytime temperature it is the coolest month of the year.
Expect about 83 mm of rain on roughly 10 days, which makes January a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 9 h 57 min on an average January day.
The nearest other city in this atlas is Simele (0 km away). In January its highs average 10.2°C, about as warm as Sumayl, with 83 mm of rain.
Among the 59 cities listed in Iraq, Sumayl ranks 50th of 59 for the warmest January highs and joint 43rd of 59 for the driest January (rainfall, lowest first). The mean January high of those 59 cities is 14.5°C; Sumayl is 4.4°C cooler than that mean.
From January to February, average highs rise by 1.8°C to 11.9°C, and monthly rainfall falls from 83 mm to 75 mm.
The annual picture
January 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
Sumayl climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 10.1°C0.6°C | 0.6°C | 83 | 10.1 | 9.910 h |
| February | 11.9°C1.3°C | 1.3°C | 75 | 10.0 | 10.811 h |
| March | 16.3°C4.6°C | 4.6°C | 82 | 10.1 | 11.912 h |
| April | 21.9°C9.2°C | 9.2°C | 58 | 8.6 | 13.113 h |
| May | 28.4°C14.3°C | 14.3°C | 25 | 4.2 | 14.114 h |
| June | 35.5°C19.7°C | 19.7°C | 1.2 | 0.4 | 14.615 h |
| July | 39.7°C23.4°C | 23.4°C | 0.3 | 0.1 | 14.414 h |
| August | 39.2°C23.0°C | 23.0°C | 0.2 | 0.0 | 13.614 h |
| September | 34.2°C18.6°C | 18.6°C | 1.0 | 0.3 | 12.512 h |
| October | 27.1°C13.7°C | 13.7°C | 24 | 3.3 | 11.311 h |
| November | 17.8°C6.8°C | 6.8°C | 52 | 6.2 | 10.210 h |
| December | 12.0°C2.4°C | 2.4°C | 75 | 8.8 | 9.710 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
January in nearby cities
- Simele in JanuaryIraq · 0 kmHigh 10.2°C · Low 0.5°C · 83 mm rain
- Dihok in JanuaryIraq · 12 kmHigh 10.0°C · Low 0.4°C · 91 mm rain
- Sīnah in JanuaryIraq · 18 kmHigh 9.4°C · Low -0.3°C · 91 mm rain
- Zaxo in JanuaryIraq · 35 kmHigh 10.0°C · Low -0.4°C · 113 mm rain
- Silopi in JanuaryTurkey · 55 kmHigh 9.5°C · Low -1.5°C · 105 mm rain
- Al Mawşil al Jadīdah in JanuaryIraq · 63 kmHigh 12.2°C · Low 3.2°C · 71 mm rain
- Cizre in JanuaryTurkey · 79 kmHigh 10.0°C · Low -0.4°C · 107 mm rain
- 'Ākra in JanuaryIraq · 93 kmHigh 8.9°C · Low -0.7°C · 146 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 Sumayl) is explained once on the Sumayl year overview and on the Sources, method and limits page.
Simele lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.