Rainy Season in Saudi Arabia: When It Rains and Flash Flood Safety

Climate & Seasons

Rainy Season in Saudi Arabia: When It Rains and Flash Flood Safety

Saudi Weather editorial teamSaudi Weather editorial team
4 min read

Table of contents

Saudi Weather editorial team

Saudi Weather editorial team

Author

Share this post

Saudi Arabia is famous for sunshine, so many newcomers are surprised when a heavy thunderstorm floods the streets. When does it rain in Saudi Arabia? The answer depends on the region, because the Kingdom combines deserts, long coastlines and high mountains. This guide summarises when rain usually falls in each area, how to follow it on the rain radar, and how to stay safe from flash floods.

Central, northern and eastern regions

In Riyadh, Al Qassim, Hail and the Eastern Province, most rain usually falls between late autumn and spring (roughly November to April). Rain often comes as short showers that can be heavy and accompanied by thunderstorms, separated by long dry spells. Rain-bearing systems are often preceded by strong winds that raise dust.

Wasm and Murabbaniyah: local seasons

Locally, rain is linked to traditional seasons that you will hear people talk about:

  • Al-Wasm: associated with autumn and early-winter rains in the Najd region, eagerly awaited because the rain turns the desert green.
  • Al-Murabbaniyah: one of the coldest periods of winter. It usually starts in early December and lasts about 40 days, with cold nights especially in the north.

These seasons are approximate and vary from year to year, so the daily forecast remains the most reliable reference.

The west coast: Jeddah, Makkah and Madinah

In Jeddah and Makkah, rain is relatively rare but can arrive as heavy thunderstorms over a short period, especially between autumn and winter. Because the ground is dry and hard, water can collect quickly in streets, tunnels and low-lying districts.

The southwest: Al Baha, Abha, Jazan and Najran

The southwestern highlands follow a different pattern. Rain can also fall in spring and summer, with thunderclouds building over the mountains in the afternoon. This makes the region one of the wettest parts of the Kingdom.

What is a flash flood?

A flash flood happens when heavy rain falls faster than the ground can absorb it. Water rushes into valleys (wadis) and low roads, sometimes far from where the rain actually fell. A wadi that is dry in the morning can carry a fast, powerful current a few hours later. Even shallow, fast-moving water can knock a person over or sweep a car away.

How to prepare for the rainy season

  1. Use the radar and the forecast together: the live rain radar for the current situation, and your city page for hourly and 15-day forecasts.
  2. Never cross a wadi or flooded road, on foot or by car, even if the water looks shallow.
  3. Do not camp in wadi beds during the rainy season, even under a clear sky.
  4. Follow official alerts: warnings from the National Center for Meteorology (NCM) and instructions from Civil Defense are the reference in an emergency.
  5. Before a road trip, check the weather in every city on your route, as conditions can differ a lot between regions.
  6. At home, keep drains and roof outlets clear and park away from low-lying areas when heavy rain is expected.

Driving in the rain

  • Slow down and increase the distance to the car in front: roads are slippery after a long dry period.
  • Switch on your headlights and avoid sudden braking.
  • Avoid tunnels and underpasses during heavy downpours.
  • If water is rising around your car, leave it and move to higher ground.

FAQ

When does it rain in Riyadh?

Mostly between November and April, as scattered showers that can be thundery. Check Riyadh weather for the chance of rain this week.

Which part of Saudi Arabia gets the most rain?

The southwestern highlands, around Al Baha, Abha and nearby areas, usually receive more rain than the rest of the Kingdom, and in several seasons of the year.

Can I see rain coming before it arrives?

Yes. Follow the clouds and precipitation layers on the rain radar, and the hourly chance of rain on your city page.

Where can I find official flood warnings?

Follow the National Center for Meteorology (NCM) and Civil Defense through their official channels.

Rain in Saudi ArabiaRainy seasonFlash floods

Related articles