St. Lucia (Castries) in July
In July, St. Lucia (Castries) averages 29°C (84°F) during the day and 25°C (78°F) at night, with frequent rain — about 29 days of the month see precipitation (112 mm total).
High seasonConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
July offers comfortable temperatures in St. Lucia (Castries), with some rain to plan around.
How July compares to the rest of the year in St. Lucia (Castries)
July is in the middle of the year for warmth in St. Lucia (Castries) (6th of 12) and one of the wettest months (1st of 12). Daytime temperature matches the city's annual average. July runs roughly the same as June (29°C) and stays flat into August.
July sunrise & sunset in St. Lucia (Castries)
Times shown for St. Lucia (Castries) local time (America/St_Lucia), calculated for the 15th of July. They shift by a few minutes day to day across the month.
Photography light in St. Lucia (Castries) — July
Golden-hour and blue-hour windows for the 15th of July, in St. Lucia (Castries)'s local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — St. Lucia (Castries) in July
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on July's tier (High season) and St. Lucia (Castries)'s popularity.
Crowds & pricing — July in St. Lucia (Castries)
This is a busy month in St. Lucia (Castries) — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: Northern Hemisphere summer holidays
Sun & mosquito risk — July in St. Lucia (Castries)
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sea temperature in St. Lucia (Castries) — July
Across the year St. Lucia (Castries)'s sea swings from 27.1°C (February) to 30.3°C (September) — July sits at 29°C.
St. Lucia (Castries) in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 27°C / 81°F | 24°C / 75°F | 56 mm | 26 | — |
| February | 27°C / 81°F | 24°C / 74°F | 47 mm | 24 | — |
| March | 28°C / 82°F | 24°C / 75°F | 50 mm | 26 | — |
| April | 29°C / 83°F | 24°C / 76°F | 40 mm | 23 | — |
| May | 29°C / 85°F | 25°C / 77°F | 53 mm | 26 | — |
| June | 29°C / 85°F | 25°C / 78°F | 96 mm | 27 | — |
| July | 29°C / 84°F | 25°C / 78°F | 112 mm | 29 | — |
| August | 29°C / 85°F | 26°C / 78°F | 114 mm | 29 | — |
| September | 30°C / 86°F | 26°C / 78°F | 115 mm | 27 | — |
| October | 29°C / 85°F | 26°C / 78°F | 108 mm | 28 | — |
| November | 28°C / 83°F | 25°C / 77°F | 114 mm | 28 | — |
| December | 28°C / 82°F | 25°C / 76°F | 60 mm | 23 | — |
Other cities with similar July weather
🌍 See the full ranked list of climate twins for St. Lucia (Castries) in July →
Frequently asked questions
How hot is St. Lucia (Castries) in July?
In July, St. Lucia (Castries) averages a high of 29°C (84°F) and a low of 25°C (78°F) — generally warm.
Does it rain a lot in St. Lucia (Castries) in July?
July is quite rainy in St. Lucia (Castries), with about 29 rainy days on average.
Is July a good time to visit St. Lucia (Castries)?
July is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for St. Lucia (Castries) in July?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full July packing list for St. Lucia (Castries) for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.