Port Royal in Winter
In winter (December, January and February), Port Royal sees average daytime highs around 26°C and overnight lows near 22°C, with 91 mm of rain over about 25 wet days across the season. It is the coldest season of the year and the driest season of the year.
Across winter, daytime highs hold fairly steady around 26°C. The sky is clear or mostly clear about 65% of the time across winter, and the air most often feels muggy.
Winter is Port Royal's best season of the year to visit on our travel score. Port Royal 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 Port Royal's year-round climate.
- Avg daytime high
- 26°C
- coldest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 91 mm
- 25 wet days
- Avg wind
- 12 km/h
- Travel score
- 7.3
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Port Royal in Winter
Across winter, daytime highs hold fairly steady around 26°C.
A typical winter day in Port Royal reaches about 26°C and drops to 22°C overnight. The warmest of the three months is December, the coolest February.
How winter really feels in Port Royal
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
winter sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Port Royal weather by month
How the three winter months (December, January and February) 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 | 26° / 22° | 27 | 7.9 | 11 | 7.4 |
| Feb | 26° / 22° | 21 | 7.1 | 11.4 | 7.5 |
| Mar | 26° / 22° | 33 | 7.9 | 11.9 | 7.3 |
| Apr | 27° / 23° | 35 | 9 | 12.4 | 6.9 |
| May | 28° / 24° | 95 | 14.1 | 12.8 | 5.8 |
| Jun | 29° / 25° | 75 | 11.6 | 13.1 | 5.4 |
| Jul | 29° / 25° | 56 | 10.5 | 13 | 5.4 |
| Aug | 29° / 25° | 85 | 14 | 12.6 | 4.9 |
| Sep | 29° / 25° | 128 | 18.3 | 12.1 | 4.4 |
| Oct | 28° / 24° | 153 | 21.7 | 11.6 | 4.4 |
| Nov | 27° / 24° | 81 | 13.3 | 11.2 | 6.0 |
| Dec | 27° / 23° | 43 | 9.6 | 10.9 | 6.9 |
Cloud cover in Winter
The sky is clear or mostly clear about 65% of the time across winter.
Chance of precipitation in Winter
Port Royal gets around 91 mm of rain over 25 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 12 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 hours in early December to 11 h 36 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.9 kWh/m².
Hazard calendar for Port Royal
None of Port Royal's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Port Royal sits in the Atlantic hurricane belt; the season peaks August–October.
Port Royal's rainy season runs August–November, when most of the year's rain falls.
Is winter a good time to visit Port Royal?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is one of the better times to visit Port Royal for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Port Royal in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Port Royal sees daytime highs around 26°C and nights near 22°C. Worth packing: light clothes, rain gear and sun protection. About 25 days see rain.
Sea temperature near Port Royal in Winter
The nearest coast averages about 27°C across winter — 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 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 28 | Warm |
| May | 28 | Tropical |
| Jun | 28 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Port Royal in Winter
Clear-sky midday UV across winter averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Port Royal peaks around April 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 Port Royal in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Port Royal 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 Port Royal?
Port Royal sits at 17.9°N, 76.8°W, 0 m above sea level, in Jamaica. The nearest listed city is Portmore, 6.0 km away.
Topography around Port Royal
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Port Royal.
Within 3 km, the terrain around Port Royal has only modest variations in elevation — a maximum elevation change of 6 m around an average of 0 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 767 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,229 m.
The land around Port Royal is covered by water (94%) within 3 km, water (46%) and trees (29%) within 16 km, and water (59%) and trees (34%) 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 Port Royal (17.9374°, -76.8406°, 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.