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Weather in Saint John for August 2027

Your guide to Saint John weather in August - trends and predictions

    Temperatures

  • In general, the average temperature in Saint John at the beginning of August is 21.4 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 19.3 °C by the end of August.

    • Rain 🌧️

  • Saint John experiences moderate rainfall in August, with an average of 10 rainy days and a total precipitation of 176 mm.

    • More

  • Is August a good time to visit Saint John? check out the best time to travel to Saint John page.

  • ✨ Is August a good time to visit Saint John? – Ask the AI Weatherman

Average dry days
21
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/13°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
84 %
Avg humidity

Saint John Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
21°
2
Cloudy
22°
3
Light rain
19°
4
Light rain
22°
5
Moderate or heavy rain shower
22°
6
Patchy rain possible
23°
7
Partly cloudy
23°
8
Light rain
20°
9
Heavy rain at times
19°
10
Light rain
21°
11
Moderate rain
20°
12
Patchy rain possible
22°
13
Moderate rain
21°
14
Patchy rain possible
22°
15
Patchy rain possible
22°
16
Partly cloudy
21°
17
Light rain
19°
18
Moderate or heavy rain shower
21°
19
Patchy rain possible
21°
20
Light rain
19°
21
Patchy rain possible
21°
22
Light rain
22°
23
Moderate rain
21°
24
Partly cloudy
20°
25
Patchy rain possible
20°
26
Heavy rain
19°
27
Fog
19°
28
Sunny
20°
29
Moderate rain
21°
30
Heavy rain
17°
31
Light rain
20°

Temperatures trend during August in Saint John

See the weather trend as well as the moving average line

August weather in Saint John day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
1 Aug. Patchy rain possible
Patchy rain possible
 21° /14° 0.9 mm 5
2 Aug. Cloudy
Cloudy
 22° /14° 0 mm 5
3 Aug. Light rain
Light rain
 19° /14° 5.7 mm 4
4 Aug. Light rain
Light rain
 22° /14° 2.7 mm 6
5 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 22° /15° 8.7 mm 6
6 Aug. Patchy rain possible
Patchy rain possible
 23° /14° 0.2 mm 7
7 Aug. Partly cloudy
Partly cloudy
 23° /14° 0.4 mm 7
8 Aug. Light rain
Light rain
 20° /12° 3.1 mm 4
9 Aug. Heavy rain at times
Heavy rain at times
 19° /13° 8.5 mm 3
10 Aug. Light rain
Light rain
 21° /14° 4.4 mm 5
11 Aug. Moderate rain
Moderate rain
 20° /14° 13.4 mm 4
12 Aug. Patchy rain possible
Patchy rain possible
 22° /14° 0.2 mm 6
13 Aug. Moderate rain
Moderate rain
 21° /13° 10.1 mm 6
14 Aug. Patchy rain possible
Patchy rain possible
 22° /14° 0.6 mm 6
15 Aug. Patchy rain possible
Patchy rain possible
 22° /14° 2.1 mm 6
16 Aug. Partly cloudy
Partly cloudy
 21° /12° 0 mm 6
17 Aug. Light rain
Light rain
 19° /12° 7.1 mm 4
18 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 21° /13° 8.9 mm 4
19 Aug. Patchy rain possible
Patchy rain possible
 21° /13° 1.7 mm 4
20 Aug. Light rain
Light rain
 19° /14° 3 mm 3
21 Aug. Patchy rain possible
Patchy rain possible
 21° /14° 0.7 mm 6
22 Aug. Light rain
Light rain
 22° /13° 4.5 mm 5
23 Aug. Moderate rain
Moderate rain
 21° /12° 10.2 mm 4
24 Aug. Partly cloudy
Partly cloudy
 20° /13° 0.3 mm 4
25 Aug. Patchy rain possible
Patchy rain possible
 20° /12° 2.3 mm 4
26 Aug. Heavy rain
Heavy rain
 19° /13° 31.8 mm 4
27 Aug. Fog
Fog
 19° /12° 0.2 mm 4
28 Aug. Sunny
Sunny
 20° /12° 0.5 mm 4
29 Aug. Moderate rain
Moderate rain
 21° /10° 11.7 mm 6
30 Aug. Heavy rain
Heavy rain
 17° /11° 29.5 mm 4
31 Aug. Light rain
Light rain
 20° /11° 2.9 mm 5
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Important Notice
Our weather forecast for Saint John in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Saint John forecast closer to your planned date for the most up-to-date weather information.
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Saint John in August - FAQ

What are the expected maximum and minimum temperatures in Saint John during August?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Saint John during August?
Significant rainfall exceeding 176 mm is expected in Saint John during August, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Saint John during August?
The average wind speed in Saint John during August is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Saint John

Explore the daily rainfall trends and prepare for Saint Johns August weather 💧
Typically, Saint John has 10 rainy days in August with a total of 176 mm of rainfall.

UV exposure in Saint John during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Location coordinates Where is Saint John?

Get accurate weather forecasts for Saint John, located at latitude 45.271 and longitude -66.056. Stay updated with localized weather information tailored for Saint John.

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