Climate averages 1991–2020
Dūmā weather
by month.
See how the year changes. July has the highest average daily maximum; August (tied with July) has the lowest average monthly rainfall.
Pleasant-weather months by our simple rule: AprilMayOctoberNovember
Long-term climate patterns, not a forecast for a particular trip.
Across the year Dūmā averages a daytime high of 24.2°C and a nighttime low of 10.8°C, with about 96 mm of rain on roughly 22 days. July is the warmest month (average high 36.1°C) and January the coolest (11.5°C). January is the wettest month with 24 mm; August (tied with July) is the driest with under 1 mm.
Months with pleasant weather by a simple rule (average high between 18°C and 29°C, average low of at least 5°C and at most 8 rain days): April, May, October and November. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in Dūmā
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
Dūmā climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 11.5°C2.2°C | 2.2°C | 24 | 5.0 | 10.210 h |
| February | 13.2°C2.9°C | 2.9°C | 18 | 4.4 | 11.011 h |
| March | 17.9°C5.6°C | 5.6°C | 13 | 3.1 | 12.012 h |
| April | 23.3°C9.4°C | 9.4°C | 4.3 | 1.3 | 13.013 h |
| May | 28.7°C13.5°C | 13.5°C | 4.0 | 1.0 | 13.914 h |
| June | 33.3°C16.4°C | 16.4°C | 0.2 | 0.0 | 14.314 h |
| July | 36.1°C18.3°C | 18.3°C | 0.1 | 0.0 | 14.114 h |
| August | 35.9°C18.8°C | 18.8°C | 0.1 | 0.0 | 13.413 h |
| September | 32.4°C17.3°C | 17.3°C | 0.3 | 0.1 | 12.412 h |
| October | 26.5°C13.6°C | 13.6°C | 3.3 | 0.9 | 11.411 h |
| November | 18.5°C7.8°C | 7.8°C | 11 | 2.5 | 10.510 h |
| December | 13.3°C4.0°C | 4.0°C | 16 | 3.7 | 10.010 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
Nearby cities
- DamascusSyria · 12 kmHigh 23.5°C · Low 9.7°C · 182 mm rain a year
- DārayyāSyria · 20 kmHigh 23.3°C · Low 10.4°C · 182 mm rain a year
- ZahléLebanon · 55 kmHigh 20.9°C · Low 9.7°C · 414 mm rain a year
- AleyLebanon · 79 kmHigh 19.9°C · Low 9.9°C · 610 mm rain a year
- JouniehLebanon · 86 kmHigh 23.3°C · Low 15.3°C · 702 mm rain a year
- Nabatîyé et TahtaLebanon · 88 kmHigh 22.0°C · Low 13.0°C · 616 mm rain a year
- BeirutLebanon · 91 kmHigh 24.0°C · Low 15.0°C · 702 mm rain a year
- SidonLebanon · 96 kmHigh 23.3°C · Low 15.7°C · 956 mm rain a year
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 limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+3, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 33.60°, 36.40° (3 km from the city centre), adjusted up by 1.1°C for the difference between the city's elevation (660 m) and the cell's (827 m). Rain comes from the 0.25° cell at 33.50°, 36.50°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.