As Sulayyil in Spring
In spring (March, April and May), As Sulayyil sees average daytime highs around 36°C and overnight lows near 22°C, with 12 mm of rain over about 3 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs climb from about 29°C in early March to 42°C by late May. The sky is clear or mostly clear about 83% of the time across spring, and the air most often feels dry.
Spring is As Sulayyil's 3rd-best season to visit on our travel score. For the whole year in context, see As Sulayyil's year-round climate.
- Avg daytime high
- 36°C
- 2nd-warmest season
- Avg overnight low
- 22°C
- Rainfall
- 12 mm
- 3 wet days
- Avg wind
- 14 km/h
- Travel score
- 2.9
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in As Sulayyil in Spring
Over the season highs climb from about 29°C in early March to 42°C by late May.
A typical spring day in As Sulayyil reaches about 36°C and drops to 22°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in As Sulayyil
Once humidity and wind are folded in, spring brings about 72 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
As Sulayyil weather by month
How the three spring months (March, April and May) 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 | 24° / 11° | 3 | 0.8 | 10.9 | 9.3 |
| Feb | 27° / 14° | 1 | 0.4 | 11.3 | 8.7 |
| Mar | 31° / 18° | 5 | 1.1 | 11.9 | 5.7 |
| Apr | 36° / 23° | 6 | 1.2 | 12.5 | 2.7 |
| May | 40° / 26° | 2 | 0.3 | 13 | 0.3 |
| Jun | 43° / 28° | 0 | 0 | 13.2 | 0.0 |
| Jul | 43° / 30° | 0 | 0 | 13.1 | 0.0 |
| Aug | 43° / 29° | 0 | 0 | 12.7 | 0.0 |
| Sep | 40° / 26° | 0 | 0 | 12.1 | 0.3 |
| Oct | 35° / 21° | 1 | 0.1 | 11.5 | 3.5 |
| Nov | 29° / 16° | 1 | 0.2 | 11 | 7.4 |
| Dec | 25° / 12° | 0 | 0.2 | 10.8 | 9.4 |
Cloud cover in Spring
The sky is clear or mostly clear about 83% of the time across spring.
Chance of precipitation in Spring
As Sulayyil gets around 12 mm of rain over 3 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 14 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 36 min in early March to 13 h 06 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 7.2 kWh/m².
Hazard calendar for As Sulayyil
In spring, As Sulayyil overlaps its dust season. The full year is below, with each hazard's peak months called out.
As Sulayyil sees seasonal dust haze (January–September), heaviest in July.
Is spring a good time to visit As Sulayyil?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in As Sulayyil.
What to pack for As Sulayyil in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, As Sulayyil sees daytime highs around 36°C and nights near 22°C. Pack light clothes and sun protection.
UV index in As Sulayyil in Spring
Clear-sky midday UV across spring averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in As Sulayyil peaks around April 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 5 (high).
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) | 8 | 9 | 11 | 12 | 10 | 12 | 10 | 11 | 7 | 10 | 7 | 5 |
| Level | Very high | Very high | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 9 | Very high |
| Mar | 11 | Extreme |
| Apr | 12 | Extreme |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 10 | Extreme |
| Aug | 11 | Extreme |
| Sep | 7 | Very high |
| Oct | 10 | Very high |
| Nov | 7 | High |
| Dec | 5 | Moderate |
Air quality in As Sulayyil in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in As Sulayyil is worst in March — around 110 µg/m³ PM2.5 (unhealthy), about 2.7× the cleanest month (October, 41 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) | 77 | 94 | 110 | 101 | 82 | 64 | 77 | 69 | 47 | 41 | 57 | 65 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 77 | Unhealthy |
| Feb | 94 | Unhealthy |
| Mar | 110 | Unhealthy |
| Apr | 101 | Unhealthy |
| May | 82 | Unhealthy |
| Jun | 64 | Unhealthy |
| Jul | 77 | Unhealthy |
| Aug | 69 | Unhealthy |
| Sep | 47 | Poor |
| Oct | 41 | Poor |
| Nov | 57 | Unhealthy |
| Dec | 65 | Unhealthy |
Where is As Sulayyil?
As Sulayyil sits at 20.5°N, 45.6°E, 606 m above sea level, in Saudi Arabia. The nearest listed city is Laylá, 236 km away.
Topography around As Sulayyil
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of As Sulayyil.
Within 3 km, the terrain around As Sulayyil has only modest variations in elevation — a maximum elevation change of 40 m around an average of 606 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 123 m; within 80 km, significant variations in elevation — a maximum elevation change of 428 m.
The land around As Sulayyil is covered by bare terrain (67%) and artificial surfaces (25%) within 3 km, bare terrain (94%) within 16 km, and bare terrain (97%) 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 As Sulayyil (20.4607°, 45.5779°, elevation 606 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.