Climate averages 1991–2020
Najrān weather
in January.
A warm, very dry month: the 11th warmest and the joint 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in Najrān: daytime highs average 25.7°C and nights cool to about 9.6°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 1.6 mm of rain on fewer than one day, which makes January a very dry month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 12 min on an average January day.
The nearest other city in this atlas is Şabyā (164 km away). In January its highs average 28.4°C, 2.6°C warmer than Najrān, with 17 mm of rain.
Among the 35 cities listed in Saudi Arabia, Najrān ranks 8th of 35 for the warmest January highs and 1st of 35 for the driest January (rainfall, lowest first). The mean January high of those 35 cities is 20.9°C; Najrān is 4.8°C warmer than that mean.
From January to February, average highs rise by 2.4°C to 28.1°C, and monthly rainfall rises from 1.6 mm to 1.9 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
Najrān climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 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 | 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
January in nearby cities
- Şabyā in JanuarySaudi Arabia · 164 kmHigh 28.4°C · Low 21.9°C · 17 mm rain
- Khamis Mushait in JanuarySaudi Arabia · 173 kmHigh 20.7°C · Low 10.7°C · 24 mm rain
- Jizan in JanuarySaudi Arabia · 180 kmHigh 27.9°C · Low 23.0°C · 14 mm rain
- Abha in JanuarySaudi Arabia · 190 kmHigh 18.1°C · Low 10.7°C · 21 mm rain
- ‘Amrān in JanuaryYemen · 205 kmHigh 19.9°C · Low 10.6°C · 9.3 mm rain
- Sanaa in JanuaryYemen · 238 kmHigh 21.9°C · Low 9.4°C · 6.5 mm rain
- Bariq in JanuarySaudi Arabia · 282 kmHigh 27.3°C · Low 19.2°C · 19 mm rain
- Bīshah in JanuarySaudi Arabia · 322 kmHigh 24.8°C · Low 9.4°C · 4.1 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.