Cairo

Cairo (Egypt) has a hot arid desert climate with an annual average of around 23 °C. Daytime highs average 29 °C, while nights cool to about 17 °C. The destination sees roughly 35 mm of rainfall per year and 11.2 hours of sunshine per day on average.

Home to the only surviving ancient wonder — the Pyramids of Giza and the Sphinx. Plus the Islamic Old City and the Egyptian Museum with Tutankhamun's treasure.

With summer highs up to 37.5 °C in July, the heat is overwhelming for most travellers. Cooler and far more pleasant: January through spring — mild days and crisp starlit nights. Rainfall, at only 35 mm a year, is essentially a non-issue.

Note: with roughly 29 °C between the hottest and coldest month, picking the right time of year matters a lot here.