Monthly weather averages & travel planning

North America › 🇯🇲 Jamaica › Montego Bay
Updated: March 2026
May is a fair time to visit Montego Bay (4/10). With 11 daily sunshine hours and only 24 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 8th sunniest of the year in Montego Bay. May suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 24 potential rain days. June offers a similar profile at lower hotel rates if dates are flexible. Watch out for prolonged rain stretches: with 24 wet days, a fully outdoor itinerary is risky. Build in museum days and covered market visits as contingency. 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.
May weather in Montego Bay is defined by a daily temperature swing from 24°C at night to 30°C during the afternoon. Humidity averages 78%, and you can count on around 11 sunshine hours each day. That combination makes May warm and lush, though dressing in breathable fabrics keeps things manageable.
30°C
86°F
Avg High
24°C
75°F
Avg Low
24 days
215 mm total
Rain Days
11h
per day avg
Sunshine
78%
Humid
Humidity
The 6°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. At 78% humidity, the 30°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 15 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 86°F average high, 75°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Montego Bay in May means dressing for 30°C days and 24°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 30°C daytime heat. Evening temperatures settle at 24°C, a modest 6°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 24 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: Montego Bay sees heavy rain periods where a compact travel umbrella can feel inadequate. A packable waterproof jacket offers better coverage for prolonged downpours and leaves both hands free for maps and cameras.
May has no major festivals or public holidays in Montego Bay, 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.
Based on 30°C average highs and 24 rainy days
In May, Montego Bay 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 30°C, with lower humidity than the wet months. Overnight lows of 24°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.
Montego Bay in May
May ranks 8th sunniest of the year in Montego Bay, with an average 11 daily sunshine hours. The driest months are January, February, and March. July is the hottest month (31°C avg high); January is the coolest (27°C). From here, temperatures fall 0°C into June. Compared to last month (April: 29°C high, 17 rain days), May is warmer and wetter. May sits in the middle of the annual sunshine ranking for Montego Bay, offering a reasonable balance of good weather and manageable crowds.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 27°C | 22°C | 11 | 11h | View |
| February | 28°C | 22°C | 11 | 11h | View |
| March | 28°C | 22°C | 12 | 11h | View |
| April | 29°C | 23°C | 17 | 12h | View |
| May | 30°C | 24°C | 24 | 11h | View |
| June | 30°C | 25°C | 22 | 12h | View |
| July | 31°C | 25°C | 23 | 12h | View |
| August | 31°C | 25°C | 26 | 12h | View |
| September | 30°C | 25°C | 26 | 11h | View |
| October | 29°C | 24°C | 25 | 10h | View |
| November | 28°C | 23°C | 17 | 10h | View |
| December | 27°C | 23°C | 12 | 10h | View |
January
11 rain days, 11h sun
February
11 rain days, 11h sun
March
12 rain days, 11h sun
April
17 rain days, 12h sun
May
24 rain days, 11h sun
June
22 rain days, 12h sun
July
23 rain days, 12h sun
August
26 rain days, 12h sun
September
26 rain days, 11h sun
October
25 rain days, 10h sun
November
17 rain days, 10h sun
December
12 rain days, 10h sun
Data Sources for Montego Bay
Climate normals represent 30-year averages (1991-2020). Individual years may vary.