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Weather in Thunder Bay District for August 2025

Your guide to Thunder Bay District weather in August - trends and predictions
  • In general, the average temperature in Thunder Bay District at the beginning of August is 23.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 21.7 °C by the end of August.

  • The climate of Thunder Bay District in August is notably wet, with an average of 15 rainy days.

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Average dry days
16
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/12°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Thunder Bay District in August average weather

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Temperatures trend during August in Thunder Bay District

See the weather trend as well as the moving average line

August weather day by day

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Date Weather Temperatures Rain UV More
1 Aug. Overcast
Overcast
23° /14° 0.1 mm 6
2 Aug. Overcast
Overcast
28° /15° 1.2 mm 7
3 Aug. Partly cloudy
Partly cloudy
25° /16° 0.1 mm 7
4 Aug. Partly cloudy
Partly cloudy
21° /13° 0 mm 6
5 Aug. Overcast
Overcast
21° /11° 0 mm 6
6 Aug. Overcast
Overcast
21° /12° 0.1 mm 6
7 Aug. Patchy rain possible
Patchy rain possible
23° /14° 0.2 mm 6
8 Aug. Moderate rain at times
Moderate rain at times
22° /13° 5.3 mm 5
9 Aug. Overcast
Overcast
17° /11° 1.1 mm 4
10 Aug. Patchy rain possible
Patchy rain possible
17° /10° 0.8 mm 4
11 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
18° /11° 13.7 mm 5
12 Aug. Overcast
Overcast
19° /12° 0.9 mm 5
13 Aug. Overcast
Overcast
22° /13° 0 mm 5
14 Aug. Sunny
Sunny
22° /13° 0 mm 6
15 Aug. Partly cloudy
Partly cloudy
21° /13° 13.8 mm 5
16 Aug. Patchy rain possible
Patchy rain possible
20° /14° 12.9 mm 5
17 Aug. Patchy rain possible
Patchy rain possible
22° /14° 0.7 mm 5
18 Aug. Sunny
Sunny
23° /12° 0 mm 6
19 Aug. Patchy rain possible
Patchy rain possible
22° /13° 0.1 mm 6
20 Aug. Partly cloudy
Partly cloudy
21° /13° 0 mm 6
21 Aug. Moderate rain at times
Moderate rain at times
21° /11° 0.9 mm 6
22 Aug. Moderate rain at times
Moderate rain at times
20° /12° 10.6 mm 5
23 Aug. Patchy rain possible
Patchy rain possible
21° /13° 4.1 mm 5
24 Aug. Patchy rain possible
Patchy rain possible
23° /14° 1.4 mm 5
25 Aug. Light rain shower
Light rain shower
21° /13° 10.5 mm 5
26 Aug. Overcast
Overcast
24° /13° 4.8 mm 6
27 Aug. Mist
Mist
21° /8° 14 mm 5
28 Aug. Light rain shower
Light rain shower
18° /11° 0.9 mm 5
29 Aug. Patchy light rain
Patchy light rain
19° /10° 1.5 mm 5
30 Aug. Mist
Mist
25° /11° 0.9 mm 6
31 Aug. Overcast
Overcast
24° /12° 0.9 mm 5
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Important Notice
Our weather forecast for Thunder Bay District 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 Thunder Bay District forecast closer to your planned date for the most up-to-date weather information.

Thunder Bay District in August - FAQ

What are the expected maximum and minimum temperatures in Thunder Bay District during August?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Thunder Bay District during August?
Significant rainfall exceeding 114.8 mm is expected in Thunder Bay District during August, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Thunder Bay District during August?
The average wind speed in Thunder Bay District during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Thunder Bay District

Explore the daily rainfall trends and prepare for Thunder Bay Districts August weather 💧

UV exposure in Thunder Bay District during August

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

Get accurate weather forecasts for Thunder Bay District, located at latitude 48.382 and longitude -89.25. Stay updated with localized weather information tailored for Thunder Bay District.

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