Weather in Cancun 🇲🇽
Monthly weather averages & travel planning
May
Avg Temp
29°C
Rain Days
14 days
Sun Hours
12 hrs
Humidity
78%
North America › 🇲🇽 Mexico › Cancun
Updated: March 2026
Is May a Good Time to Visit Cancun?
4/10
Fair
May is a fair time to visit Cancun (4/10). With 12 daily sunshine hours and only 14 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 2nd sunniest of the year in Cancun. May suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 14 potential rain days. June offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Cancun's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.
vs April:28°C avg high
Cancun's May climate peaks at 29°C each afternoon before cooling to 25°C overnight. 12 daily sunshine hours and just 14 wet days mean the odds of a fine day are solidly in your favour. It is a reasonable time to visit, with a backup plan for the occasional shower.
29°C
84°F
Avg High
25°C
77°F
Avg Low
14 days
91 mm total
Rain Days
12h
per day avg
Sunshine
78%
Humid
Humidity
Temperature in Cancun in May
The narrow 4°C gap between daytime and overnight temperatures, characteristic of coastal cities with maritime moderation, means a single mid-layer works across the whole day. At 78% humidity, the 29°C daytime high feels 2-4°C warmer in practice: quick-dry fabrics and shade-seeking between noon and 3pm are the sensible response. UV index averages 9 this month, classed as high to very high. SPF 30+ sunscreen, a brim hat, and sunglasses are not optional between 10am and 4pm. Wind averages 19 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 84°F average high, 77°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature Trends
High
Low
Rainfall (mm)
0-20 mm21-50 mm51-100 mm100+ mm
What to Wear in Cancun in May
Morning25°CBefore the day warms up
Afternoon29°CPeak daytime temperature
Evening28°CAfter sunset cools down
Packing for Cancun in May means dressing for 29°C days and 25°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 29°C daytime heat. Evening temperatures settle at 25°C, a modest 4°C drop that a light cardigan or denim jacket covers. For footwear, breathable walking sandals work for casual exploration, but closed-toe trainers are better for uneven surfaces in the historic centre. With 14 rain days expected, a compact travel umbrella is worth the bag space. A waterproof jacket is better than an umbrella if you plan full-day outdoor routes. At 78% average humidity, quick-dry synthetic or bamboo fabrics dry overnight and stay comfortable longer than cotton.
Local tip: Layers are more practical than a single heavy garment in Cancun. The day-to-evening temperature shift rewards packing a versatile mid-layer you can add or remove as conditions change.
Events in Cancun in May
May has no major festivals or public holidays in Cancun, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
What to Pack for Cancun in May
Based on 29°C average highs and 14 rainy days
- Light layers for morning and evening
- Breathable T-shirts and comfortable trousers
- UV-protective sunglasses
- Quick-dry travel towel
- Anti-chafe balm for long walking days
- Moisture-wicking synthetic fabrics for active days
- Compact folding umbrella
- Waterproof outer layer or packable rain jacket
- Quick-dry clothing that recovers fast after a shower
- SPF 30+ sunscreen
- Comfortable walking shoes (a second pair lets the first air out overnight)
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in Cancun in May
- Early morning walk through Cancun's historic market districtBest before 9amTemperatures are still manageable at 25°C before the midday heat builds
- Open-air rooftop dining at sunsetFrom 6pm onwardsThe 29°C daytime heat drops noticeably after sunset, making al fresco dining comfortable
- Waterfront promenade or harbour walkEarly morning or after 5pmSea breezes cut through the humidity, making coastal routes the most pleasant in heat
- Guided cycling tour of the old quarterFirst tour of the day (7-9am)The low-traffic window before tourist crowds and the cooler morning air make this the prime riding slot
- Spend a morning in the national or city art museumOpens at 10am; arrive earlyWith 14 rain days expected, having a full-day indoor plan is practical insurance
- Cooking class focused on regional cuisineHalf-day sessions run 10am-1pm or 3-6pmIndoor activity that fills a rainy half-day with genuine cultural content
- Visit covered historical sites: cathedral, palace, or bazaarAny time; most crowded middayRoofed monuments and covered markets provide exploration without weather exposure
- Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningMay brings distinct seasonal changes to public green spaces worth exploring
- Seek out chilled local specialities: cold-brew tea, ice desserts, or chilled seafood at street-level stallsAny time; most atmospheric in evening marketsHot-weather street food culture peaks in May, with vendors setting up specifically for warm evenings
Why is Cancun warm in May?
In May, Cancun sits in the dry season corridor, as the ITCZ shifts away from the region and trade winds bring drier, more stable air. This produces reliably sunny days reaching 29°C, with lower humidity than the wet months. Overnight lows of 25°C offer a pleasant reprieve from the midday heat. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Frequently Asked Questions
Cancun in May
In May, Cancun experiences average highs of 29°C (84°F) and lows of 25°C (77°F). Expect around 14 rainy days and 12 hours of sunshine per day, with humidity averaging 78%. The 4°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an overshirt or cardigan handles the cooler evenings. UV index averages 9, so sun protection is advisable on clear days.
Cancun typically sees 14 rainy days in May, with total precipitation of around 91mm. Rain is moderate and manageable. Showers tend to pass quickly, and a light rain layer or foldable umbrella is sufficient protection for most days. For context, the driest month in Cancun typically sees 4-6 fewer rain days than May.
Pack lightweight, breathable clothing (linen or cotton), a wide-brim sun hat, SPF 50+ sunscreen, and a refillable water bottle for Cancun in May. The 29°C daytime heat demands sun protection during midday hours, typically 11am to 4pm. A compact travel umbrella is also worth packing, as 14 rainy days means afternoon showers are a real possibility. Quick-dry synthetic fabrics are preferable to cotton in 78% humidity.
May is a reasonable time to visit Cancun. Expect 14 rainy days, so pack a light rain layer for flexibility. Average temperatures of 29°C make outdoor exploration comfortable during the dry periods. With 12 daily sunshine hours, there are reliable windows of good weather to plan outdoor activities around, even if the month is not the driest on the calendar.
The average high temperature in Cancun in May is 29°C (84°F), and the average low is 25°C (77°F). The mean daily temperature is approximately 27°C (81°F). The day-to-night range of 4°C is narrow, typical of coastal or maritime cities. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.
The best month to visit Cancun is generally April. April offers the most sunshine at 12 hours per day and only 7 rainy days. Average temperatures reach 28°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around April gives you the best chance of dry, bright weather.
May is shoulder or low season in Cancun, meaning fewer tourists and generally lower prices than peak months. With 12 sunshine hours and 14 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.
In May, Cancun suits a range of activities thanks to warm temperatures of 29°C. Mix of indoor and outdoor activities works well given the moderate chance of rain. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. With 12 hours of sunshine, parks and waterfront walks are particularly enjoyable.
May ranks 2nd sunniest of the year in Cancun, with an average 12 daily sunshine hours. The driest months are March, April, and February. July is the hottest month (30°C avg high); January is the coolest (25°C). From here, temperatures fall 0°C into June. Compared to last month (April: 28°C high, 7 rain days), May is warmer and wetter. May is among the top three sunniest months to visit Cancun.
Year-Round Climate
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 25°C | 22°C | 11 | 9h | View |
| February | 26°C | 23°C | 8 | 10h | View |
| March | 27°C | 23°C | 7 | 11h | View |
| April | 28°C | 24°C | 7 | 12h | View |
| May | 29°C | 25°C | 14 | 12h | View |
| June | 29°C | 26°C | 19 | 11h | View |
| July | 30°C | 26°C | 18 | 12h | View |
| August | 30°C | 26°C | 21 | 11h | View |
| September | 29°C | 26°C | 24 | 10h | View |
| October | 28°C | 25°C | 21 | 10h | View |
| November | 27°C | 24°C | 12 | 10h | View |
| December | 26°C | 23°C | 11 | 10h | View |
January
11 rain days, 9h sun
25°22°
February
8 rain days, 10h sun
26°23°
March
7 rain days, 11h sun
27°23°
April
7 rain days, 12h sun
28°24°
May
14 rain days, 12h sun
29°25°
June
19 rain days, 11h sun
29°26°
July
18 rain days, 12h sun
30°26°
August
21 rain days, 11h sun
30°26°
September
24 rain days, 10h sun
29°26°
October
21 rain days, 10h sun
28°25°
November
12 rain days, 10h sun
27°24°
December
11 rain days, 10h sun
26°23°
Other Months in Cancun
Plan Your Trip to Cancun
Data Sources for Cancun
Climate normals represent 30-year averages (1991-2020). Individual years may vary.