Ad Dilam in Winter
In winter (December, January and February), Ad Dilam sees average daytime highs around 23°C and overnight lows near 11°C, with 22 mm of rain over about 5 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across winter, daytime highs hold fairly steady around 23°C. The sky is clear or mostly clear about 77% of the time across winter, and the air most often feels dry.
Winter is Ad Dilam's best season of the year to visit on our travel score. For the whole year in context, see Ad Dilam's year-round climate.
- Avg daytime high
- 23°C
- coldest season of the year
- Avg overnight low
- 11°C
- Rainfall
- 22 mm
- 5 wet days
- Avg wind
- 12 km/h
- Travel score
- 8.8
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Ad Dilam in Winter
Across winter, daytime highs hold fairly steady around 23°C.
A typical winter day in Ad Dilam reaches about 23°C and drops to 11°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Ad Dilam
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
winter sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Ad Dilam weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 22° / 10° | 8 | 1.7 | 10.7 | 8.5 |
| Feb | 24° / 12° | 7 | 1.3 | 11.2 | 9.1 |
| Mar | 29° / 16° | 8 | 1.5 | 11.8 | 7.2 |
| Apr | 35° / 21° | 11 | 2 | 12.5 | 3.5 |
| May | 40° / 26° | 1 | 0.3 | 13.1 | 0.4 |
| Jun | 43° / 28° | 0 | 0 | 13.5 | 0.0 |
| Jul | 44° / 29° | 0 | 0 | 13.3 | 0.0 |
| Aug | 44° / 29° | 0 | 0 | 12.8 | 0.0 |
| Sep | 41° / 25° | 0 | 0 | 12.1 | 0.2 |
| Oct | 35° / 20° | 1 | 0.2 | 11.4 | 3.2 |
| Nov | 28° / 15° | 8 | 1.2 | 10.8 | 7.7 |
| Dec | 23° / 11° | 8 | 1.5 | 10.5 | 8.9 |
Cloud cover in Winter
The sky is clear or mostly clear about 77% of the time across winter.
Chance of precipitation in Winter
Ad Dilam gets around 22 mm of rain over 5 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 12 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 36 min in early December to 11 h 30 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.8 kWh/m².
Hazard calendar for Ad Dilam
In winter, Ad Dilam overlaps its dust season. The full year is below, with each hazard's peak months called out.
Ad Dilam sees seasonal dust haze (February–September), heaviest in May.
Is winter a good time to visit Ad Dilam?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is one of the better times to visit Ad Dilam for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Ad Dilam in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Ad Dilam sees daytime highs around 23°C and nights near 11°C. Worth packing: light clothes and sun protection. About 5 days see rain.
UV index in Ad Dilam in Winter
Clear-sky midday UV across winter averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ad Dilam peaks around July 20 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 5 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 6 | 7 | 9 | 7 | 10 | 9 | 11 | 10 | 9 | 9 | 6 | 4 |
| Level | High | Very high | Very high | Very high | Very high | Very high | Extreme | Extreme | Very high | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 7 | Very high |
| Mar | 9 | Very high |
| Apr | 7 | Very high |
| May | 10 | Very high |
| Jun | 9 | Very high |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 9 | Very high |
| Oct | 9 | Very high |
| Nov | 6 | High |
| Dec | 4 | Moderate |
Air quality in Ad Dilam in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Ad Dilam is worst in March — around 72 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (October, 38 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 51 | 57 | 72 | 71 | 68 | 60 | 59 | 52 | 42 | 38 | 44 | 47 |
| Level | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Poor | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 51 | Poor |
| Feb | 57 | Unhealthy |
| Mar | 72 | Unhealthy |
| Apr | 71 | Unhealthy |
| May | 68 | Unhealthy |
| Jun | 60 | Unhealthy |
| Jul | 59 | Unhealthy |
| Aug | 52 | Poor |
| Sep | 42 | Poor |
| Oct | 38 | Poor |
| Nov | 44 | Poor |
| Dec | 47 | Poor |
Where is Ad Dilam?
Ad Dilam sits at 24.0°N, 47.2°E, 453 m above sea level, in Saudi Arabia. The nearest listed city is Al Kharj, 25 km away.
Topography around Ad Dilam
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ad Dilam.
Within 3 km, the terrain around Ad Dilam has only modest variations in elevation — a maximum elevation change of 45 m around an average of 451 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 145 m; within 80 km, large variations in elevation — a maximum elevation change of 804 m.
The land around Ad Dilam is covered by bare terrain (64%) within 3 km, bare terrain (83%) within 16 km, and bare terrain (96%) within 80 km.
Saudi Arabia travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type G
- 230 V · 60 Hz
- Prices
- ≈ 47% of US
- price level, 2025
- GDP per capita
- $34,537
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Homicide rate
- 0.9
- per 100k, 2019
- Road deaths
- 35.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very low
- EF EPI 404
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ad Dilam (23.991°, 47.1618°, elevation 453 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.