Temperatures climb sharply in many areas, especially the south and central plains where daytime highs often reach the mid-30s °C. Rain is uncommon. Early summer travel is possible but prepare for heat; evenings are more comfortable.
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Average temperature across Iraq in May.
Erbil, Sulaymaniyah, Dohuk, Zagros foothills
By mid-May the highlands are warm and dry with pleasant evenings; mountain meadows host shepherds and picnic crowds from Erbil. Daytime temperatures are comfortable for multi-day treks on the Zagros trails, though afternoons can be dusty when the shamal (northwesterly winds) picks up. Travelers enjoy clear air and good visibility for viewpoints; bring sun protection and a light windbreaker for gusty ridge-line conditions.
Nineveh, Mosul, Kirkuk
Summer arrives quickly and insistently; by May temperatures are climbing toward hot, dry conditions that dominate June through August across the lower plains. Mosul becomes very hot during afternoons, making early-morning and late-evening visits to ruins and riverfronts preferable. Travelers should plan activities outside the midday heat, carry water, and expect minimal rain.
Baghdad, Karbala, Najaf, Samarra
By May the temperature climbs rapidly and daytime heat becomes uncomfortable for mid-day sightseeing; humidity is still low so nights cool somewhat. Pilgrimage crowds can grow during religious observances in Karbala and Najaf, making accommodation booking necessary. Carry water, avoid peak heat, and expect some transport services to run on limited schedules during the hottest hours.
Basra, Al-Ahwar marshes, Umm Qasr
High humidity and intense heat dominate May through August; Basra becomes particularly oppressive when temperatures exceed the mid-30s-40s°C combined with high moisture. Outside morning and late-evening windows, outdoor activities become uncomfortable and sometimes unsafe for extended exposure. If visiting in summer, choose air-conditioned accommodation, schedule early-water excursions, and be prepared for reduced visibility from occasional dust or haze.
Ramadi, Fallujah outskirts, Al-Qa’im, Rutbah
Scorching conditions arrive by May and persist into the summer: the western desert is hot and dry with extreme daytime temperatures and markedly cooler nights. Shade and water are essential; avoid mid-day travel where possible. Travelers should expect reduced services in remote desert towns and prepare vehicles for heat stress, carrying extra coolant, tires and emergency supplies.
There are no major festivals or events in Iraq during May to be aware of.
See how May compares with the rest of the year, then read the full guide.