United Arab Emirates

• Summer heat in the UAE regularly pushes daytime temperatures above 40°C (104°F), with coastal humidity adding significant discomfort from May to September.
• A short, mild winter from December to February delivers the most comfortable temperatures, typically ranging from 20°C to 25°C (68°F to 77°F) during the day.
• While the lowland desert and Gulf coast share similar extreme heat, the eastern Hajar Mountains and Fujairah’s Indian Ocean shoreline experience slightly cooler conditions.

The United Arab Emirates sits firmly inside a subtropical arid zone, producing an annual temperature rhythm dominated by a blazing summer and a brief, gentle winter. As indicated by the WeatherBox temperature map, the year swings from relatively bearable warmth to a prolonged stretch of exceptional heat. Inland desert locations and coastal cities alike see daytime highs that routinely climb beyond 40°C (104°F) between June and August, and it is not unusual for the mercury to reach the mid-40s (113–115°F) during the most intense spells. Coastal humidity, particularly along the Arabian Gulf in Dubai and Abu Dhabi, often pushes the felt conditions far above the actual air temperature, while the interior Empty Quarter bakes under a drier but equally unforgiving sun. Overnight lows in summer offer little relief, settling near 30°C (86°F) near the shore and dipping only a few degrees further inland. By contrast, the mild winter window sees genuinely pleasant afternoons with highs of 20–25°C (68–77°F), and night-time temperatures that can fall to 12–16°C (54–61°F), sometimes dropping below 10°C (50°F) in the deep desert.

Regional differences, though modest, are closely tied to geography and offer practical comfort for visitors. The broad coastal plain that hosts most of the population experiences peak summer discomfort when an oppressive blanket of humidity settles over cities from Abu Dhabi to Ras Al Khaimah. Inland oases such as Al Ain endure an even harsher dry desert heat but lack the muggy stagnation. The most meaningful variation shows up in the east, where the rugged Hajar Mountains create a cooler highland fringe. As the WeatherBox temperature map makes clear, a narrow band of slightly lower readings hugs the mountainous spine around Jebel Jais and the Gulf of Oman coastline near Fujairah. Here, daytime temperatures often run a few degrees below those of the western lowlands, and the marine breeze off the Indian Ocean tempers the searing edge of summer. This subtle cooling transforms outdoor possibilities: when Dubai’s streets are furnace-like, the shaded wadi trails and mountain roads of Fujairah and Ras Al Khaimah become far more inviting, and even short scenic drives feel restorative.

Most travellers find the period from November to March the most favourable season for experiencing the UAE with ease. Gloriously clear, sun-drenched winter days are ideal for unhurried strolls through the Al Fahidi Historical Neighbourhood, serene desert mornings among the dunes of the Liwa oasis, and long afternoons exploring the terraced gardens of Al Ain. Come June through September, the overwhelming heat renders prolonged outdoor exposure impractical for many, shifting tourism toward air-conditioned malls, indoor cultural attractions, and after-dark dining on waterfront boulevards. Packing for the UAE revolves around sun readiness and simple layering. Lightweight, breathable fabrics, a sturdy wide-brimmed hat, and high-factor sun protection are indispensable in every season. For the cooler desert nights and heavily chilled indoor spaces between December and February, a light sweater or shawl provides welcome comfort. Browsing the WeatherBox temperature map alongside monthly charts can help you fine-tune your arrival to catch the mildest stretches, whether you seek gentle beach days or desert adventures. Visit WeatherBox to explore deeper temperature data and interactive maps that make trip planning straightforward and well-informed.

• The UAE is dominated by the hot desert climate (Köppen BWh), with year-round warmth, minimal rainfall, and abundant sunshine.
• Coastal areas along The Gulf endure sweltering high humidity in summer, while the interior desert remains intensely dry and hot.
• A small pocket of the Hajar Mountains in the east transitions to a semi-arid climate (BSh), receiving slightly more winter rain and offering cooler temperatures.

The United Arab Emirates sits squarely within the Earth’s arid subtropical belt, where the hot desert climate (BWh) covers almost the entire country. This Köppen zone means you can expect cloudless skies, extremely low annual rainfall, and persistently high temperatures. Geography dictates the nuances: a flat, sandy coastline merges into the vast Rub’ al Khali (Empty Quarter) dune fields in the south, while the rugged Hajar Mountains rise sharply in the east near the Oman border. These mountains wring out the little moisture carried on southeasterly winds, creating a small semi-arid climate (BSh) where winters feel fresher and wadis may flow briefly after storms. The rest of the country sits below an unwavering subtropical high-pressure ridge that stifles rain-bearing systems, leaving places like Abu Dhabi and Dubai with less than 100 millimetres (4 inches) of rain per year, much of it arriving in erratic winter bursts.

Seasonal and regional contrasts are stark, even within such a parched landscape. From June to September, coastal cities like Dubai and Sharjah stew in a combination of searing heat and high humidity dragged in from the warm Gulf; daytime highs routinely range from 40°C to 48°C (104°F to 118°F), with overnight lows often staying above 30°C (86°F). The interior desert around the Liwa Oasis is even hotter by day but lacks the muggy blanket, making it feel less oppressive during the famous golden-dune sunsets. Winter, from November to March, brings the most agreeable weather: temperatures settle between 20°C and 28°C (68°F to 82°F) during the day, dipping to a refreshing 12°C to 16°C (54°F to 61°F) at night. This is also the season for occasional shamal winds, which can whip up dust storms and cloud skies for a few days. In the semi-arid Hajar Mountains, places like Jebel Jais and the valleys around Fujairah see a few extra showers, coaxing thin green patches of vegetation and offering mornings cool enough for an outdoor coffee without the coastal clamminess.

Travel planning turns almost entirely on this winter window. For comfortable sightseeing, the lovely stretch from November through March delivers gloriously clear skies for strolling Dubai’s waterfront promenades, exploring the Grand Mosque in Abu Dhabi, or joining a gentle desert safari in the Arabian sands. April and October are transition months; you can still travel, but the heat builds quickly, especially inland. We strongly suggest avoiding the core summer period unless you intend to spend your days inside air-conditioned malls and hotels. Packing should centre on light, breathable fabrics, a broad-brimmed hat, and high-factor sunscreen year-round. If you travel in winter, a light jacket or pashmina is handy for cooler evenings and gusty shamal days. The UAE’s climate is essentially one of generous winter sun and extreme summer heat, a pattern you can explore in detail through our charts and data at WeatherBox. Let our Köppen climate classification maps and seasonal breakdowns help you pick the ideal month for your visit.