Siwa in Summer
In summer (June, July and August), Siwa sees average daytime highs around 36°C and overnight lows near 23°C, with 0 mm of rain over about 0 wet days across the season. It is the warmest season of the year and the driest season of the year.
Across summer, daytime highs hold fairly steady around 36°C. The sky is clear or mostly clear about 99% of the time across summer, and the air most often feels dry.
Summer is Siwa's weakest season of the year to visit on our travel score. For the whole year in context, see Siwa's year-round climate.
- Avg daytime high
- 36°C
- warmest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 0 mm
- 0 wet days
- Avg wind
- 13 km/h
- Travel score
- 2.5
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Siwa in Summer
Across summer, daytime highs hold fairly steady around 36°C.
A typical summer day in Siwa reaches about 36°C and drops to 23°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Siwa
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Siwa weather by month
How the three summer months (June, July and August) 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 | 18° / 7° | 2 | 0.5 | 10.3 | 7.8 |
| Feb | 20° / 8° | 3 | 0.7 | 11 | 8.3 |
| Mar | 24° / 11° | 2 | 0.4 | 11.8 | 9.2 |
| Apr | 28° / 15° | 0 | 0.1 | 12.7 | 7.8 |
| May | 33° / 19° | 0 | 0.1 | 13.4 | 5.0 |
| Jun | 36° / 22° | 0 | 0 | 13.8 | 2.9 |
| Jul | 37° / 23° | 0 | 0 | 13.7 | 2.2 |
| Aug | 37° / 24° | 0 | 0 | 13 | 2.4 |
| Sep | 34° / 22° | 0 | 0 | 12.2 | 4.1 |
| Oct | 30° / 18° | 0 | 0 | 11.3 | 7.0 |
| Nov | 24° / 13° | 1 | 0.2 | 10.5 | 9.0 |
| Dec | 20° / 9° | 2 | 0.5 | 10.2 | 8.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 99% of the time across summer.
Chance of precipitation in Summer
Siwa gets around 0 mm of rain over 0 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 13 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 42 min in early June to 12 h 36 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.9 kWh/m².
Hazard calendar for Siwa
In summer, Siwa overlaps its dust season. The full year is below, with each hazard's peak months called out.
Siwa sees seasonal dust haze (March–June), heaviest in May.
Is summer a good time to visit Siwa?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Siwa. The water and warmth also suit a beach or pool day.
What to pack for Siwa in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Siwa sees daytime highs around 36°C and nights near 23°C. Pack light clothes and sun protection.
UV index in Siwa in Summer
Clear-sky midday UV across summer 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 Siwa peaks around August 13 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 14 at about 4 (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) | 4 | 4 | 7 | 10 | 11 | 11 | 11 | 12 | 10 | 8 | 6 | 4 |
| Level | Moderate | Moderate | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 4 | Moderate |
| Mar | 7 | Very high |
| Apr | 10 | Extreme |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 10 | Very high |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 4 | Moderate |
Air quality in Siwa in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Siwa is worst in March — around 51 µg/m³ PM2.5 (poor), about 1.9× the cleanest month (November, 26 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) | 46 | 43 | 51 | 49 | 48 | 43 | 35 | 33 | 31 | 28 | 26 | 32 |
| Level | Poor | Poor | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 46 | Poor |
| Feb | 43 | Poor |
| Mar | 51 | Poor |
| Apr | 49 | Poor |
| May | 48 | Poor |
| Jun | 43 | Poor |
| Jul | 35 | Moderate |
| Aug | 33 | Moderate |
| Sep | 31 | Moderate |
| Oct | 28 | Moderate |
| Nov | 26 | Moderate |
| Dec | 32 | Moderate |
Where is Siwa?
Siwa sits at 29.2°N, 25.5°E, -15 m above sea level, in Egypt. The nearest listed city is As Sallūm, 264 km away.
Topography around Siwa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Siwa.
Within 3 km, the terrain around Siwa has only modest variations in elevation — a maximum elevation change of 27 m around an average of -12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 139 m; within 80 km, significant variations in elevation — a maximum elevation change of 262 m.
The land around Siwa is covered by trees (44%) and bare terrain (33%) within 3 km, bare terrain (87%) within 16 km, and bare terrain (99%) within 80 km.
Egypt travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 220 V · 50 Hz
- Prices
- ≈ 15% of US
- price level, 2025
- GDP per capita
- $3,086
- 2025
- Happiness
- 3.9 / 10
- World Happiness, 2025
- Safe drinking water
- 79%
- of population, 2024
- Homicide rate
- 1.3
- per 100k, 2017
- Road deaths
- 10.1
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Low
- EF EPI 459
- Religion
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 Siwa (29.2032°, 25.5196°, elevation -15 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.