If you plan to visit Castries in August, the weather is typically alright, with an average high temperature of +84°F during the day and approximately 1 sunny days. Expect some rainy, though, as there are typically 27 rainy days in the month and around 110 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+84°F
Avg. max. temperature
+75°F
Min.
+91°F
Max.
110 mm
Total precipitation
80%
Avg. humidity
5 m/s
Avg. wind
1 ☀️
Sunny Days
2 ⛅️
Cloudy
27 🌦
Rainy
Our opinion: Castries has OK weather in August.
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Average temperature in Castries in August
Here are the expected maximum, average and minimum temperatures in Castries for August based on the historical data.
Last Year
Historical Data
Going from a maximum of +91°F during the day to a minimum of +79°F during the night, the temperature in August averages around +88°F.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +90°F to +90°F.
Is Castries warm or cold in August?
Castries is typically warm in August.
Maximum temperatures go up compared to the previous month from +82°F to +84°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.
August is one of the warmest months in Castries, here is the comparison with other months:
Climate in Castries in August
Castries weather looks like this, on average, in August and the surrounding months.
July
August
September
Avg. temperature
+82°F
+84°F
+84°F
Min. temperature
+68°F
+75°F
+72°F
Max. temperature
+90°F
+91°F
+91°F
Rainfall
96 mm
110 mm
112 mm
Wind
6 m/s
5 m/s
4 m/s
Humidity
79%
80%
80%
Air pressure
1014 HPa
1013 HPa
1012 HPa
Sunny days
0
1
1
Cloudy days
2
2
2
Rainy days
28
27
24
Snowy days
0
0
0
August weather is still as ok as in July.It’s getting warmer as August arrives. The average maximum temperature goes up from +82°F to +84°F during the day.Prepare for more rain. Average rainfall goes from 96 mm to 110 mm.Humidity rises from 79% to 80%.Winds are calmer in comparison to July, going down from 6 m/s to 5 m/s on average.The good news is there are likely to be more sunny days in August, from 0 to 1.
September brings much the same weather, it remains ok.
Wind speed in Castries in August based on historical data.
Last Year
Historical Data
The average wind speed is 6 m/s getting up to 9 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 increasing during August, going from 3 m/s to 7 m/s over the course of the month.
Rain
Amount of rainfall in mm during August in Castries based on historical data.
Last Year
Historical Data
Typically, there is a 74% chance of rain on an average day in August, with total rainfall of approximately 130 mm. The maximum amount of rainfall per day is around 38 mm, which is moderate rain.August is a pretty wet month with over 23 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
August is one of the rainiest months in Castries, here is a comparison with other months, 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 August in Castries?
This is the weather in Castries in August 2024:
1 August
☀️
+89°F
2 August
🌧️
+89°F
3 August
🌧️
+89°F
4 August
☁️
+88°F
5 August
☀️
+90°F
6 August
☀️
+89°F
7 August
🌧️
+88°F
8 August
☀️
+89°F
9 August
🌧️
+84°F
10 August
🌧️
+89°F
11 August
☀️
+88°F
12 August
☁️
+89°F
13 August
🌧️
+89°F
14 August
☁️
+89°F
15 August
☀️
+89°F
16 August
☀️
+88°F
17 August
☀️
+88°F
18 August
🌧️
+89°F
19 August
🌧️
+88°F
20 August
🌧️
+82°F
21 August
☀️
+89°F
22 August
☀️
+88°F
23 August
☁️
+88°F
24 August
☁️
+90°F
25 August
☀️
+86°F
26 August
☀️
+90°F
27 August
☀️
+91°F
28 August
☁️
+91°F
29 August
🌧️
+86°F
30 August
🌧️
+88°F
31 August
☀️
+89°F
In August 2024 Castries had 14 sunny days, 6 cloudy days, and 11 rainy days. The average maximum temperature was +88°F, with an absolute maximum of +91°F and a minimum of +82°F. The average humidity was 82%, with a maximum of 100% and a minimum of 46%. The average wind speed was 6 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in August?
Climate Change Over the Years
This is how Castries climate has changed over the last 43 years.
The climate in Castries in August 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 August:
Is August a good time to visit Castries?
It’s always a good time to visit Castries, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Castries in August?
August 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 August?
Castries is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Castries in August?
Usually, it’s not very sunny in Castries in August, 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.
