Al-Dilam’s weather through the year
The readings update on their own; under them is a short guide to the rain, heat and dust of this part of the Region.
Expect roughly 100 mm of rain across the year and a marked swing between seasons — summer afternoons close to 44 °C, winter days near 20 °C, and cold clear nights around 6 °C.
Beyond the built-up centre lie gravel flats, seasonal watercourses and date gardens — the familiar pattern of a Najdi oasis ringed by desert.
In short, expect long months of dry heat, a brief comfortable winter, and a spring that swings between green growth and blowing dust.
Long hours of strong sunshine define the climate as much as the heat does. The UV index regularly tips into the extreme band in summer and rarely falls to truly low levels, which makes shade and cover a sensible habit through the year.
Open desert and farmland surround the town, where wind and sun bite harder than they do in the shade of a city, and choosing the right hour to be outside matters more than it does downtown.
Summer
The hot season runs deep into autumn. Afternoons climb to about 44 °C under a hard sun, with very dry air; nights fall back toward 27 °C. Work and travel are best kept to the early morning and the cool of the evening.
In winter
Winter is the easy season. Days run near 20 °C, but the clear desert sky lets the temperature fall to around 6 °C after dark. It’s comfortably the best stretch of the year for being outdoors.
Spring and autumn
The transitional seasons pass quickly. Spring brings spring, the peak of the dust-storm season and the year’s most active rain, greening the desert for a few weeks; autumn is the calmer, settled side of the year.
Rain and flooding
Rain is scarce and seasonal, nearly all of it between November and April. Storms can be brief but locally heavy, and on dry desert ground the water runs off fast — wadis and low crossings can fill and flood with little warning.
Check the rain-probability reading above before travelling on an unsettled day.
When a storm does pass, it can briefly transform the desert before the dryness returns.
Wind, dust & humidity
With single-digit humidity common in summer, this is dry-heat country. The thing to watch is the wind and the dust it carries, above all in spring when storms sweep the open plateau.
Live wind speed, gusts and direction sit in the dashboard above, beside the feels-like value and dew point.
On a bad dust day the air turns hazy and the quality reading climbs, so the sensitive should stay in.
Practical notes
Plan around three things: summer heat, cold winter nights and spring dust. Carry water and avoid the midday sun in the hot months, bring a warm layer in winter, and check the dust outlook before a long drive or a day in the open in spring.
If you’re driving the desert roads, avoid wadi crossings and low dips during heavy rain — flash floods arrive fast — and watch for reduced visibility when the dust is up.
One small habit goes a long way: glance at the live temperature, feels-like and UV at the top of the page before you commit to an outdoor plan, then scan the seven-day strip for any dust or rain on the horizon.
Late autumn through early spring is the sweet spot here; the dashboard above updates on its own so you can plan with confidence.