Castries, Saint Lucia 14-Day Forecast
Saint Lucia 🇱🇨
84°
Patchy rain nearby right now
Today: high 85°, low 80°
Updated 4 hours ago
Castries weather for the next 14 days
Thursday, August 13
Patchy rain nearby High 85° Low 80°Precipitation
58%
· 0.07 in
Max wind
22 mph
Humidity
75%
UV index
12 - Extreme
Sunrise / sunset
05:50 AM / 06:27 PM
Friday, August 14
Patchy rain nearby High 84° Low 81°Precipitation
38%
· 0.02 in
Max wind
23 mph
Humidity
73%
UV index
12 - Extreme
Sunrise / sunset
05:50 AM / 06:26 PM
Saturday, August 15
Patchy rain nearby High 83° Low 80°Precipitation
78%
· 0.21 in
Max wind
23 mph
Humidity
78%
UV index
12 - Extreme
Sunrise / sunset
05:50 AM / 06:26 PM
Sunday, August 16
Patchy rain nearby High 84° Low 79°Precipitation
70%
· 0.11 in
Max wind
19 mph
Humidity
81%
UV index
6 - High
Sunrise / sunset
05:50 AM / 06:25 PM
Monday, August 17
Patchy rain nearby High 85° Low 80°Precipitation
65%
· 0.1 in
Max wind
19 mph
Humidity
74%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:25 PM
Tuesday, August 18
Patchy rain nearby High 86° Low 80°Precipitation
17%
· 0.0 in
Max wind
16 mph
Humidity
73%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:24 PM
Wednesday, August 19
Patchy rain nearby High 85° Low 80°Precipitation
53%
· 0.03 in
Max wind
14 mph
Humidity
77%
UV index
6 - High
Sunrise / sunset
05:51 AM / 06:24 PM
Thursday, August 20
Light rain shower High 85° Low 80°Precipitation
78%
· 0.31 in
Max wind
15 mph
Humidity
78%
UV index
6 - High
Sunrise / sunset
05:51 AM / 06:23 PM
Friday, August 21
Patchy rain nearby High 86° Low 80°Precipitation
74%
· 0.19 in
Max wind
11 mph
Humidity
77%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:22 PM
Saturday, August 22
Patchy rain nearby High 85° Low 81°Precipitation
48%
· 0.03 in
Max wind
15 mph
Humidity
77%
UV index
6 - High
Sunrise / sunset
05:51 AM / 06:22 PM
Sunday, August 23
Patchy rain nearby High 85° Low 80°Precipitation
67%
· 0.11 in
Max wind
17 mph
Humidity
77%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:21 PM
Monday, August 24
Patchy rain nearby High 85° Low 80°Precipitation
65%
· 0.1 in
Max wind
15 mph
Humidity
77%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:20 PM
Tuesday, August 25
Patchy rain nearby High 86° Low 80°Precipitation
41%
· 0.02 in
Max wind
12 mph
Humidity
75%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:20 PM
Castries 14-day outlook: the story
The warmest day of Castries's 14-day outlook is Tuesday, August 25 with a high near 86°F (30°C); the coolest night comes Sunday, August 16, dipping to 79°F (26°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 85°F (29°C), right in line with the typical August high of 85°F (29°C).
Precipitation is most likely on Wednesday 12, Thursday 13, Saturday 15, Sunday 16 and beyond; the wettest day looks like Thursday, August 20 with about 0.31 in (7.8 mm) expected. For the weekend, expect Saturday 83°F (28°C) and patchy rain nearby / Sunday 84°F (29°C) and patchy rain nearby.
For typical conditions month by month, see the Castries climate & average temperatures guide.
Castries forecast questions
Will it rain in Castries this week?
The forecast currently shows meaningful precipitation chances on 10 of the next 14 days, peaking around Thursday, August 20.
What will be the warmest day in Castries over the next 14 days?
Tuesday, August 25, with a forecast high near 86°F (30°C).
How accurate is a 14-day forecast for Castries?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Castries by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 81° | 73° | 18 | 2.2 in | 10.8 h/day | 76% |
| February | 81° | 73° | 13 | 1.8 in | 11.1 h/day | 74% |
| March | 82° | 73° | 15 | 1.9 in | 11.6 h/day | 74% |
| April | 84° | 74° | 12 | 1.5 in | 11.8 h/day | 73% |
| May | 85° | 76° | 13 | 1.9 in | 11.7 h/day | 74% |
| June | 85° | 76° | 19 | 3.3 in | 11.3 h/day | 77% |
| July | 84° | 76° | 24 | 4.6 in | 11.5 h/day | 80% |
| August | 85° | 76° | 23 | 4.2 in | 11.3 h/day | 80% |
| September | 86° | 77° | 22 | 4.5 in | 11.2 h/day | 80% |
| October | 85° | 76° | 21 | 3.9 in | 10.8 h/day | 80% |
| November | 83° | 75° | 21 | 4.4 in | 10.5 h/day | 80% |
| December | 82° | 74° | 17 | 2.2 in | 10.7 h/day | 77% |
14-day forecasts nearby