Climate averages 1991–2020
Ar Rayyān weather
in May.
A very hot, very dry month: the 5th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a very hot month in Ar Rayyān: daytime highs average 38.9°C and nights cool to about 25.2°C. By daytime temperature it is the 5th warmest of the 12 months.
Rain is very rare: less than 1 mm falls in a typical May (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 22 min on an average May day.
The nearest other city in this atlas is Doha (11 km away). In May its highs average 37.5°C, 1.4°C cooler than Ar Rayyān, with almost no rain (under 1 mm).
Among the 3 cities listed in Qatar, Ar Rayyān ranks 1st of 3 for the warmest May highs and joint 2nd of 3 for the driest May (rainfall, lowest first). The mean May high of those 3 cities is 37.5°C; Ar Rayyān is 1.3°C warmer than that mean.
From May to June, average highs rise by 2.4°C to 41.2°C, and monthly rainfall stays under 1 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
Ar Rayyān climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 21.6°C12.9°C | 12.9°C | 11 | 2.2 | 10.811 h |
| February | 23.5°C13.7°C | 13.7°C | 11 | 1.6 | 11.311 h |
| March | 27.4°C16.2°C | 16.2°C | 12 | 2.0 | 12.012 h |
| April | 33.1°C20.6°C | 20.6°C | 3.7 | 0.7 | 12.713 h |
| May, selected | 38.9°C25.2°C | 25.2°C | 0.3 | 0.1 | 13.413 h |
| June | 41.2°C27.4°C | 27.4°C | 0 | 0.0 | 13.714 h |
| July | 42.2°C28.9°C | 28.9°C | 0.2 | 0.1 | 13.514 h |
| August | 42.0°C28.7°C | 28.7°C | 0.1 | 0.0 | 13.013 h |
| September | 39.6°C26.3°C | 26.3°C | 0.1 | 0.0 | 12.312 h |
| October | 35.5°C23.3°C | 23.3°C | 0.5 | 0.1 | 11.612 h |
| November | 28.9°C19.6°C | 19.6°C | 7.2 | 1.2 | 10.911 h |
| December | 23.7°C15.2°C | 15.2°C | 14 | 1.9 | 10.611 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
- Doha in MayQatar · 11 kmHigh 37.5°C · Low 25.7°C · 0.3 mm rain
- Lusail in MayQatar · 16 kmHigh 36.2°C · Low 25.8°C · 0.2 mm rain
- Ar Rifā‘ in MayBahrain · 128 kmHigh 30.2°C · Low 26.6°C · 0.5 mm rain
- Madīnat Ḩamad in MayBahrain · 130 kmHigh 30.6°C · Low 26.7°C · 0.4 mm rain
- Manama in MayBahrain · 134 kmHigh 31.0°C · Low 26.7°C · 0.5 mm rain
- Al Muharraq in MayBahrain · 135 kmHigh 31.1°C · Low 26.7°C · 0.5 mm rain
- Khobar in MaySaudi Arabia · 164 kmHigh 36.6°C · Low 25.2°C · 0.6 mm rain
- Dammam in MaySaudi Arabia · 183 kmHigh 35.3°C · Low 25.3°C · 0.7 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 Ar Rayyān) is explained once on the Ar Rayyān year overview and on the Sources, method and limits page.
Doha lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.