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Ajman, the smallest of the seven emirates, sits on the Persian Gulf coast of the United Arab Emirates, immediately northeast of Sharjah and Dubai on a low, flat desert plain at approximately 25.41°N, 55.51°E. It has a hot desert climate (Köppen BWh) with long, extremely hot and humid summers and short, warm winters, its coastal position adding Gulf humidity to the desert heat while keeping winter mild.
Summer, from May to September, is long, intensely hot and humid, with August the hottest month — average highs around 41°C and warm nights near 30–32°C. The nearby Gulf loads the air with humidity, so the heat feels oppressive and air conditioning is essential, though a sea breeze offers some relief on the coast. Rain is essentially absent for months, and the sun is relentless.
Winter, from December to February, is warm, sunny and pleasant, with January the coolest month — average highs around 25–26°C and comfortable nights near 15–17°C. This mild, dry season is comfortably the best time of year, with warm days ideal for the beach and low humidity, and the Gulf staying warm enough for swimming. Genuine cold is unknown.
Ajman is very dry, receiving only around 85–90 mm of rain a year, almost all of it falling in occasional bursts between December and March; the long summer is completely rainless. What rain does come can arrive as sudden downpours that briefly flood the flat, drainage-poor terrain. Live rainfall, humidity, and pressure readings for the city are shown in the panels above.
Ajman's weather is essentially that of the wider Dubai–Sharjah conurbation: extreme summer heat combined with high Gulf humidity, mild sunny winters, and near-total dryness. Occasional summer shamal winds raise dust across the coast, and the humidity, rather than the raw temperature, is what makes the long summer feel most punishing.
To follow any single measurement in Ajman more closely, use our live instruments: the online barometer for atmospheric pressure, the thermometer for temperature, the hygrometer for humidity, the anemometer for wind speed, the wind vane for wind direction, and the rain gauge for rainfall.