Siwa in Fall
In fall (September, October and November), Siwa sees average daytime highs around 29°C and overnight lows near 18°C, with 1 mm of rain over about 0 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 35°C in early September to 22°C by late November. The sky is clear or mostly clear about 86% of the time across fall, and the air most often feels dry.
Fall is Siwa's 3rd-best season to visit on our travel score. For the whole year in context, see Siwa's year-round climate.
- Avg daytime high
- 29°C
- 2nd-warmest season
- Avg overnight low
- 18°C
- Rainfall
- 1 mm
- 0 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.7
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Siwa in Fall
Over the season highs ease from about 35°C in early September to 22°C by late November.
A typical fall day in Siwa reaches about 29°C and drops to 18°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Siwa
Once humidity and wind are folded in, fall brings about 33 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Siwa weather by month
How the three fall months (September, October and November) 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 Fall
The sky is clear or mostly clear about 86% of the time across fall.
Chance of precipitation in Fall
Siwa gets around 1 mm of rain over 0 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 12 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 36 min in early September to 10 h 18 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 5.4 kWh/m².
Hazard calendar for Siwa
None of Siwa's seasonal hazards peak in fall. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Siwa sees seasonal dust haze (March–June), heaviest in May.
Is fall a good time to visit Siwa?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Siwa for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Siwa in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Siwa sees daytime highs around 29°C and nights near 18°C. Pack light clothes and sun protection.
UV index in Siwa in Fall
Clear-sky midday UV across fall averages around 8 — enough to warrant sun protection. 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 Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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.