Morant Bay in Summer
In summer (June, July and August), Morant Bay sees average daytime highs around 28°C and overnight lows near 25°C, with 355 mm of rain over about 57 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 33% of the time across summer, and the air most often feels oppressive.
Summer is Morant Bay's 3rd-best season to visit on our travel score. Morant Bay has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Morant Bay's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 355 mm
- 57 wet days
- Avg wind
- 15 km/h
- Travel score
- 4.9
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Morant Bay in Summer
Across summer, daytime highs hold fairly steady around 28°C.
A typical summer day in Morant Bay reaches about 28°C and drops to 25°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Morant Bay
Once humidity and wind are folded in, summer brings about 28 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Morant Bay weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 25° / 22° | 69 | 17.7 | 11 | 6.0 |
| Feb | 25° / 22° | 49 | 15.5 | 11.4 | 6.1 |
| Mar | 26° / 22° | 66 | 17.5 | 11.9 | 6.0 |
| Apr | 26° / 23° | 63 | 16.1 | 12.4 | 5.8 |
| May | 27° / 24° | 144 | 21.2 | 12.8 | 4.9 |
| Jun | 28° / 25° | 125 | 18.8 | 13.1 | 5.0 |
| Jul | 28° / 25° | 101 | 17.9 | 13 | 5.1 |
| Aug | 28° / 25° | 128 | 20.1 | 12.6 | 4.6 |
| Sep | 28° / 25° | 161 | 22.2 | 12.1 | 4.2 |
| Oct | 28° / 24° | 194 | 24.7 | 11.6 | 4.3 |
| Nov | 27° / 24° | 126 | 19.8 | 11.2 | 5.0 |
| Dec | 26° / 23° | 92 | 18.9 | 10.9 | 5.6 |
Cloud cover in Summer
The sky is clear or mostly clear about 33% of the time across summer.
Chance of precipitation in Summer
Morant Bay gets around 355 mm of rain over 57 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 15 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 hours in early June to 12 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.6 kWh/m².
Hazard calendar for Morant Bay
In summer, Morant Bay overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Morant Bay sits in the Atlantic hurricane belt; the season peaks August–October.
Is summer a good time to visit Morant Bay?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Morant Bay for sightseeing.
What to pack for Morant Bay in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Morant Bay sees daytime highs around 28°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 57 days see rain.
Sea temperature near Morant Bay in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 29°C and coldest in February near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 28 | Warm |
| Jun | 28 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index in Morant Bay in Summer
Clear-sky midday UV across summer averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Morant Bay peaks around April 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 10 | 12 | 13 | 12 | 13 | 11 | 12 | 12 | 11 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Extreme |
| Mar | 12 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | Very high |
Air quality in Morant Bay in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Morant Bay is worst in June — around 32 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (December, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 10 | 10 | 12 | 19 | 32 | 31 | 25 | 17 | 14 | 9 | 8 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 10 | Good |
| Mar | 10 | Good |
| Apr | 12 | Good |
| May | 19 | Moderate |
| Jun | 32 | Moderate |
| Jul | 31 | Moderate |
| Aug | 25 | Moderate |
| Sep | 17 | Moderate |
| Oct | 14 | Moderate |
| Nov | 9 | Good |
| Dec | 8 | Good |
Where is Morant Bay?
Morant Bay sits at 17.9°N, 76.4°W, 0 m above sea level, in Jamaica. The nearest listed city is Port Antonio, 33 km away.
Topography around Morant Bay
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Morant Bay.
Within 3 km, the terrain around Morant Bay has only modest variations in elevation — a maximum elevation change of 221 m around an average of 27 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,315 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,224 m.
The land around Morant Bay is covered by trees (41%) and water (41%) within 3 km, trees (47%) and water (46%) within 16 km, and water (74%) and trees (23%) within 80 km.
Jamaica travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 110 V · 50 Hz
- Prices
- ≈ 60% of US
- price level, 2025
- GDP per capita
- $8,003
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Homicide rate
- 49.4
- per 100k, 2023
- Road deaths
- 15.1
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Morant Bay (17.8815°, -76.4093°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.