Port Royal weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Excellent
Best time to visit: June – July, November – April
What is the weather like in Port Royal in January?
In January, Port Royal is hot: daytime highs average 28 °C, and even at night it stays warm at around 24 °C. The sea averages 27.4 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain is rare: about 5 days bring 16 mm in total. The air is often humid and muggy. All in all, January is an excellent month for a holiday in Port Royal.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 94 | 97 | 98 |
| Day | 28° | 28° | 28° |
| Night | 24° | 24° | 23° |
| Sea | 28° | 27° | 27° |
| Sun | 8 h | 8 h | 9 h |
| Rain days | 6 | 5 | 5 |
More details for January
- Daylight
- 11 h 10 min06:41 – 17:51
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 36 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−5America/Jamaica
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %90 %
- Few rainy daysweight 20 %96 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in January
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
Port Royal in January: quick answers
Is Port Royal hot in January?
Yes. In January, Port Royal is hot: daytime highs average 28 °C and nights stay around 24 °C.
Can you swim in Port Royal in January?
Yes. In January the sea averages 27.4 °C – lovely and warm for swimming.
Does it rain much in Port Royal in January?
Rain is rare: about 5 days bring 16 mm in total.
Port Royal month by month
The whole year in Port RoyalAll destinations: JamaicaCaribbean weather in JanuaryWhere to go in JanuarySea temperature in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences