October through April is the comfortable window for Cairo and the Nile valley. Inside
that window, late December and Easter are the crowded peaks, and the quietest weeks with the same
good weather are the first half of December and the second half of January.
That is the short answer and it is what most sites tell you. What follows is the part that
actually changes a trip: what each season does to the way you spend the day, and the two things
about spring and summer that catch American travelers out.
Daytime highs in Luxor and Aswan sit in the upper 70s to upper 80s F (25 to 31 C) for most of
this stretch, dropping into the 60s F (around 18 C) at the December and January low. Cairo runs a
few degrees cooler than the south throughout.
The thing nobody warns you about is the night. Desert nights drop hard, and January in Aswan can
fall to the low 50s F (around 11 C) after dark. On a Nile cruise you will be on an open deck in the
evening, and a fleece or a light jacket is not optional in midwinter even though you spent the
afternoon in a t-shirt.
Summer in the Nile valley is genuinely hot. Luxor and Aswan regularly clear 105 F (40 C) and can
push higher in July and August. Cairo is cooler than the south, and the Mediterranean coast and the
Red Sea are cooler still, with sea breeze doing most of the work.
Summer is not a write-off, and the people who enjoy it are the ones who invert the day: out at
opening time, back indoors or onto the water through the middle hours, out again late afternoon.
Sites are emptier, and the light on the west bank at dawn is the best of the year. What you cannot
do is walk an unshaded site at noon and expect to enjoy it.
Roughly March through May, Egypt gets the khamsin: a hot, dry wind off the desert that carries
sand and dust. A khamsin day is hazy, the air is gritty, temperatures spike, and visibility drops.
It does not last, and it does not happen every day of the season, but it can flatten the light for
photography and it is unpleasant if you wear contact lenses or have a respiratory condition.
It is worth knowing about because spring otherwise looks like the obvious answer on paper: warm,
between the peaks, cheaper than Christmas. It is a good season. It just is not the guaranteed one
that a temperature chart implies, and the dust is the reason.
Ramadan is a month of daytime fasting observed across Egypt. It moves about eleven days earlier
each year against the Western calendar, so check where it falls for your dates rather than trusting
a fixed month you read somewhere.
What changes for a visitor: monuments and museums stay open, sometimes on adjusted hours; many
local restaurants close during daylight and open after sunset; the pace of the day shifts later; and
traffic just before the evening meal is at its worst of the year. What does not change: your guide,
your transport and your itinerary run normally, and tourist hotels serve food all day.
Some travelers deliberately choose it. The evenings are festive in a way the rest of the year is
not. Others find the rhythm inconvenient. Neither reaction is wrong, but it should be a decision
rather than a surprise.
Twice a year, on February 22 and October 22, sunlight reaches down the full length of the temple
at Abu Simbel and lights the statues in the inner sanctuary. These two dates are fixed and they draw
a crowd that is large by Abu Simbel standards.
If you want to see it, say so early, because it is the one thing on the Egyptian calendar where
the date genuinely cannot flex. If you do not, it is worth knowing those two mornings are the
busiest of the year at that site.
The hot months are the low season, so summer is when demand is softest. The tradeoff is real
heat, and the saving matters less than whether you are willing to change how you use the day.
Avoid late December, Easter week and the two sun festival dates. Beyond the calendar, the bigger
lever is the clock: being at Giza or Karnak at opening time changes the experience more than the
month does.
No. The south is consistently hotter than Cairo, the Mediterranean coast is cooler and wetter,
and the Red Sea is moderated by the sea. A single national forecast is not much use for planning a
route that covers several of those.
The Red Sea is swimmable all year for most people, with the coolest water in the winter months.
Divers who feel the cold use a thicker suit in midwinter.
Very little in the Nile valley and the south. The Mediterranean coast, Alexandria included, gets
a real if modest winter rainy season, and a heavy Cairo downpour, while rare, causes disruption out
of proportion to the rainfall because the drainage is not built for it.
The month matters less than what you want out of the trip and how you are willing to structure
the day around the weather. Tell us when you can travel and what you most want to see, and we will
tell you honestly what that season gives you and what it costs you.
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Related reading: the Egypt visa for US citizens,
is Egypt safe for Americans,
Egypt tour packages, and
Nile cruises.
