Quick answer: Dubai is hottest from May to September, when average highs reach 38–42°C and night-time lows stay above 28°C, while December to February is mild at about 24–27°C. In summer, wear loose, light-coloured linen and cotton; in winter, cotton and silk with a light layer for cool evenings work best.
Dressing well in the UAE starts with understanding the weather. Dubai has a hot desert climate (Köppen classification BWh): mild, pleasant winters and long, extremely hot summers where humidity makes the heat feel even more intense. This guide brings together long-term climate data for every month of the year and translates it into practical clothing advice – which fabrics, fits and layers actually work.
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Dubai climate at a glance: month-by-month data
The table below shows average daily highs, lows and rainfall at Dubai International Airport from the NOAA 1991–2020 climate normals, alongside average relative humidity reported by the Dubai Meteorological Office.
| Month | Avg high (°C) | Avg low (°C) | Avg rainfall (mm) | Avg humidity (%) | Season feel |
|---|---|---|---|---|---|
| January | 24.4 | 15.3 | 20.8 | 65 | Mild, cool evenings |
| February | 26.1 | 16.4 | 9.9 | 64 | Mild |
| March | 28.9 | 18.6 | 21.7 | 61 | Warm, occasional rain |
| April | 33.7 | 22.3 | 3.3 | 54 | Hot, drier |
| May | 38.2 | 26.1 | 0.1 | 50 | Very hot |
| June | 40.0 | 28.0 | 0.02 | 55 | Extreme heat |
| July | 41.5 | 31.2 | 1.1 | 55 | Extreme heat + humidity |
| August | 41.9 | 31.5 | 0.003 | 53 | Hottest month |
| September | 39.5 | 28.9 | 0.04 | 59 | Extreme heat, humid |
| October | 35.9 | 25.4 | 1.5 | 60 | Hot, easing |
| November | 30.7 | 21.1 | 5.9 | 61 | Warm, pleasant |
| December | 26.5 | 17.4 | 14.8 | 65 | Mild, cool evenings |
Sources: NOAA climate normals 1991–2020 for Dubai International Airport; humidity from Dubai Meteorological Office, as compiled on Wikipedia's "Climate of Dubai" page. Humidity figures cover a different period and are indicative.
Key takeaways from the data
- Five months average above 38°C (May to September), with August the hottest at an average high of 41.9°C.
- Night-time lows stay above 28°C from June to September – evenings bring little relief.
- Almost all rain falls between November and March; from May to October rainfall is close to zero.
- Humidity is highest in winter months (about 65% in December and January), but summer humidity combined with 40°C+ heat is what makes July to September feel oppressive.
Why clothing matters so much in UAE heat
The UAE takes heat seriously. Every year the Ministry of Human Resources and Emiratisation (MoHRE) enforces the Midday Break, banning outdoor work under direct sun from 12:30pm to 3pm between 15 June and 15 September; 2026 was the policy's 22nd consecutive year. The UAE Ministry of Health and Prevention's summer guidance advises wearing lightweight, loose-fitting and light-coloured clothing so the body can stay cool and release heat more easily.
The same principles apply to everyday dressing: what you wear directly affects how comfortable you feel walking from the car park to the mall, on the school run or at an outdoor event.
What to wear in Dubai, season by season
Winter: December – February (highs 24–26°C)
The most comfortable time of year. Days are warm, evenings can feel cool, especially in the desert or by the sea.
- Long sleeves and full-length styles in cotton, silk or satin work well.
- Bring a light layer – a cardigan or open-front drape – for evenings outdoors.
- A great season for richer fabrics and festive pieces, such as printed silk co-ords and embroidered kurta sets.
Spring: March – April (highs 29–34°C)
Warming up quickly, with the year's last rain in March and lower humidity in April.
- Switch to cotton and lawn for daytime.
- Relaxed shirt-and-trouser co-ord sets are ideal for office and errands.
Summer: May – September (highs 38–42°C)
Peak heat. Choose clothes that let air move and sweat evaporate.
- Linen and cotton first; avoid heavy synthetics that trap moisture.
- Loose, flowy cuts – wide-leg trousers, A-line frocks, relaxed shirts.
- Light colours such as white, sky blue, mint, blush and lavender reflect sunlight.
- Long, light layers protect skin from direct sun while staying modest.
- Carry a thin layer for heavily air-conditioned malls and offices.
- Try our Swiss linen maxi frocks.
Autumn: October – November (highs 31–36°C)
The heat eases and outdoor life returns.
- Continue with linen and cotton in October; introduce silk and satin evening pieces in November.
- Perfect for printed co-ords and brunch outfits.
Quick fabric checklist for UAE weather
| Fabric | Best months | Why |
|---|---|---|
| Linen | Apr – Oct | Highly breathable, absorbs moisture and dries quickly |
| Cotton / lawn | All year | Soft, absorbent, easy to care for |
| Silk / satin | Nov – Mar, evenings | Elegant drape, comfortable in cooler months and AC |
| Shimmer & heavier blends | Dec – Feb, indoor events | Best for air-conditioned venues and cooler nights |
| 100% polyester | Avoid in summer | Absorbs very little moisture, so sweat stays on the skin |
Frequently asked questions
What is the hottest month in Dubai?
August, with an average daily high of 41.9°C and an average low of 31.5°C (NOAA 1991–2020 normals). July is almost as hot, at 41.5°C.
What should women wear in Dubai in summer?
Loose, light-coloured clothes in breathable fabrics such as linen and cotton: wide-leg trousers, A-line frocks and relaxed co-ord sets. Long, light layers protect your skin from the sun, and a thin layer helps in air-conditioned malls and offices.
Is it OK to wear long sleeves in UAE heat?
Yes. Long sleeves in a light, breathable fabric shield skin from direct sun without trapping heat. UAE health guidance recommends lightweight, loose-fitting clothing rather than less clothing.
When is the best weather in the UAE?
November to March, when average highs range from about 24°C to 31°C. Most of the year's (small) rainfall also falls in these months.
Related guides
- Best Fabrics for UAE Heat: Linen vs Cotton vs Silk vs Polyester (With Data)
- How to Style Co-ord Sets for Work, Weekends and Events
- What Is Tarkashi Embroidery?
- How to Measure Yourself: Kurta & Co-ord Size Guide
Sources
- NOAA climate normals 1991–2020, Dubai International Airport, via Climate of Dubai – Wikipedia
- Midday Break 2026 (MoHRE): Khaleej Times
- UAE Ministry of Health and Prevention summer guidance: Khaleej Times
Published by RBF Couture, a UAE-based women's fashion label. Shop breathable co-ord sets and linen frocks with next-day delivery across the UAE.