Climate averages 1991–2020
Najrān weather
in May.
A very hot, very dry month: the 4th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a very hot month in Najrān: daytime highs average 34.7°C and nights cool to about 20.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 4.3 mm of rain on roughly 1 day, which makes May a very dry month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 57 min on an average May day.
The nearest other city in this atlas is Şabyā (164 km away). In May its highs average 35.5°C, 0.8°C warmer than Najrān, with 11 mm of rain.
Among the 35 cities listed in Saudi Arabia, Najrān ranks 21st of 35 for the warmest May highs and joint 25th of 35 for the driest May (rainfall, lowest first). The mean May high of those 35 cities is 34.8°C; Najrān is 0.1°C cooler than that mean.
From May to June, average highs rise by 2.0°C to 36.8°C, and monthly rainfall falls from 4.3 mm to 1.4 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
Najrān climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.7°C9.6°C | 9.6°C | 1.6 | 0.5 | 11.211 h |
| February | 28.1°C11.8°C | 11.8°C | 1.9 | 0.5 | 11.612 h |
| March | 30.3°C15.1°C | 15.1°C | 9.5 | 2.0 | 12.012 h |
| April | 32.2°C18.0°C | 18.0°C | 13 | 3.6 | 12.513 h |
| May, selected | 34.7°C20.5°C | 20.5°C | 4.3 | 1.0 | 12.913 h |
| June | 36.8°C20.4°C | 20.4°C | 1.4 | 0.1 | 13.213 h |
| July | 37.1°C21.5°C | 21.5°C | 1.6 | 0.4 | 13.113 h |
| August | 36.7°C21.3°C | 21.3°C | 2.4 | 0.5 | 12.713 h |
| September | 34.4°C19.7°C | 19.7°C | 0.1 | 0.0 | 12.212 h |
| October | 29.8°C16.3°C | 16.3°C | 3.3 | 0.5 | 11.812 h |
| November | 27.0°C12.9°C | 12.9°C | 0.8 | 0.2 | 11.311 h |
| December | 25.4°C9.7°C | 9.7°C | 0.2 | 0.0 | 11.111 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
- Şabyā in MaySaudi Arabia · 164 kmHigh 35.5°C · Low 28.1°C · 11 mm rain
- Khamis Mushait in MaySaudi Arabia · 173 kmHigh 28.6°C · Low 18.4°C · 46 mm rain
- Jizan in MaySaudi Arabia · 180 kmHigh 34.6°C · Low 28.9°C · 2.8 mm rain
- Abha in MaySaudi Arabia · 190 kmHigh 25.2°C · Low 16.6°C · 97 mm rain
- ‘Amrān in MayYemen · 205 kmHigh 25.0°C · Low 15.4°C · 51 mm rain
- Sanaa in MayYemen · 238 kmHigh 27.3°C · Low 15.4°C · 41 mm rain
- Bariq in MaySaudi Arabia · 282 kmHigh 36.9°C · Low 26.8°C · 31 mm rain
- Bīshah in MaySaudi Arabia · 322 kmHigh 36.0°C · Low 20.6°C · 3.1 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 Najrān) is explained once on the Najrān year overview and on the Sources, method and limits page.