July could be a good time to visit Castries, as the weather is generally fine. The average high temperature is around +82°F, and there are typically 0 sunny days in July. However, expect about 28 rainy days, and total monthly rainfall of approximately 96 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+82°F
Avg. max. temperature
+68°F
Min.
+90°F
Max.
96 mm
Total precipitation
79%
Avg. humidity
6 m/s
Avg. wind
0 ☀️
Sunny Days
2 ⛅️
Cloudy
28 🌦
Rainy
Our opinion: Castries has OK weather in July.
Avionero - Smarter Travel Planning for a Better World
Cheapest prices on the market!
Check all your dates and date combinations in a single search!
Want inspiration, set your dates and find the cheapest destinations!
Saves your searches in the browser so you can easily return to them!
Donates 10% of all revenue to charity!
Average temperature in Castries in July
Here are the expected maximum, average and minimum temperatures in Castries for July based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in July is +88°F with a maximum of +90°F and a minimum of +79°F.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +88°F to +88°F.
Is Castries warm or cold in July?
Castries is typically warm in July.
Maximum temperatures go up compared to the previous month from +82°F to +82°F. The minimum temperature also goes up from +79°F to +79°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how July is compared to other months in Castries:
Climate in Castries in July
Castries weather looks like this, on average, in July and the surrounding months.
June
July
August
Avg. temperature
+82°F
+82°F
+84°F
Min. temperature
+70°F
+68°F
+75°F
Max. temperature
+91°F
+90°F
+91°F
Rainfall
74 mm
96 mm
110 mm
Wind
6 m/s
6 m/s
5 m/s
Humidity
78%
79%
80%
Air pressure
1014 HPa
1014 HPa
1013 HPa
Sunny days
0
0
1
Cloudy days
5
2
2
Rainy days
24
28
27
Snowy days
0
0
0
July weather is still as ok as in June.The temperature levels stay the same in the area of +82°F for average maximum temperature during the day.Prepare for more rain. Average rainfall goes from 74 mm to 96 mm.Humidity rises from 78% to 79%.The average wind speed doesn’t change much during July, staying around 6 m/s.The amount of sunny days stay about the same, averaging 0 sunny days during the month.
August brings much the same weather, it remains ok.
Wind speed in Castries in July based on historical data.
Last Year
Historical Data
The average wind speed is 7 m/s getting up to 10 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Castries is gradually decreasing during July, going from 8 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during July in Castries based on historical data.
Last Year
Historical Data
Total precipitation in July is about 147 mm, with a 84% chance of rain on a typical day. The maximum amount of rainfall per day is around 24 mm, which is considered light rain.July is a pretty wet month with over 26 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how July is compared with other months in the amount of precipitation, total mm:
Castries wettest month is October, where a typical day has a 81% chance of precipitation and 124 mm of rainfall per day. February, on the other hand, is the driest month with a mere 68% chance of precipitation and 22 mm of rainfall per day.
How was the weather last July in Castries?
This is the weather in Castries in July 2025:
1 July
☀️
+88°F
2 July
☁️
+88°F
3 July
🌧️
+88°F
4 July
🌧️
+89°F
5 July
☀️
+88°F
6 July
☁️
+88°F
7 July
☁️
+89°F
8 July
🌧️
+87°F
9 July
🌧️
+89°F
10 July
🌧️
+89°F
11 July
🌧️
+88°F
12 July
☁️
+88°F
13 July
☁️
+88°F
14 July
☁️
+89°F
15 July
🌧️
+88°F
16 July
☀️
+88°F
17 July
🌧️
+89°F
18 July
🌧️
+87°F
19 July
☁️
+87°F
20 July
🌧️
+88°F
21 July
☀️
+89°F
22 July
☀️
+89°F
23 July
☁️
+88°F
24 July
🌧️
+89°F
25 July
🌧️
+82°F
26 July
🌧️
+88°F
27 July
☁️
+88°F
28 July
☁️
+88°F
29 July
🌧️
+88°F
30 July
🌧️
+87°F
31 July
🌧️
+88°F
In July 2025 Castries had 5 sunny days, 10 cloudy days, and 16 rainy days. The average maximum temperature was +88°F, with an absolute maximum of +90°F and a minimum of +82°F. The average humidity was 80%, with a maximum of 100% and a minimum of 67%. The average wind speed was 7 m/s, with a maximum of 15 m/s and a minimum of 0 m/s.
Are you planning a trip in July?
Climate Change Over the Years
This is how Castries climate has changed over the last 43 years.
The climate in Castries in July has not changed that much over the last 43 years.
The average temperature was the lowest in 1989 (+80°F) and the highest in 2024 (+88°F). The driest year was 2015 with only 515 mm of rainfall, and the wettest year was 2010 with 1324 mm.
FAQ
Frequently asked questions about the weather in Castries in July:
Is July a good time to visit Castries?
It’s always a good time to visit Castries, but the weather is changeable in July, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Castries in July?
July is warm in Castries. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Is Castries rainy in July?
Castries is often rainy in July. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Castries in July?
Usually, it’s not very sunny in Castries in July, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Castries, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
