Castries weather in January 2027

Expect daytime maximum temperatures of 28°C in Castries, St Lucia in January based on long-term weather averages. There are 8 hours of sunshine per day on average with 17 days with some rainfall and typically 113 mm of rainfall in the month.

  • 28°C maximum daytime temperature in January in Castries28
    28°C max day temperature
  • 8 hours of sunshine per day
  • 17 days with some rainfall in January in Castries17
    17 days with some rainfall
  • 22°C minimum night-time temperature in January in Castries22
    22°C min night temperature
  • 11 hours of daylight per day in January in Castries11
    11 hours of daylight per day
  • Moderate heat & humidity in January in CastriesM
    Moderate heat & humidity
  • 113 mm monthly rainfall in January in Castries113
    113 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in January in Castries9
    9 (Very High) UV index
  • 27°C sea temperature in January in Castries27
    27°C sea temperature

More about Castries

Castries by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for St Lucia

TUI: Top deals & discounts on 2026/2027 holidays

  • Explore latest special offers & online deals from TUI
  • Free child places & £0 deposits with direct debit available
  • Book summer & winter sun holidays in 2026/2027
Go to TUI deal >>

View all TUI offers

TUITUI deal finder

The January weather guide for St Lucia (Castries) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about St Lucia

How hot is it in Castries in January?

Daytime temperatures usually reach 28°C in Castries in January with moderate heat and humidity, falling to 22°C at night.

How sunny is it in Castries in January?

There are normally 8 hours of bright sunshine each day in Castries in January - that's 72% of daylight hours.

How warm is the sea around Castries in January?

The average sea temperature around Castries in January is 27°C.

Does it rain in Castries in January?

There are usually 17 days with some rain in Castries in January and the average monthly rainfall is 113mm.

Castries January sunrise & sunset times

Browse the sunrise and sunset times for Castries in January 2027. Select a month to view Castries sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st January 2027 06:28 17:47
Saturday, 16th January 2027 06:32 17:56
Sunday, 31st January 2027 06:32 18:03

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^