Newfoundland and Labrador (St. John's)
August
Weather in Newfoundland and Labrador for August 2025
Your guide to Newfoundland and Labrador weather in August - trends and predictions
In general, the average temperature in Newfoundland and Labrador at the beginning of August is 18.7 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 18.9 °C by the end of August.
Expect significant rainfall in Newfoundland and Labrador during August, with an average of 17 rainy days.
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14
Dry days
17
Rainy days
0
Snow days
17°/13°
Temperatures
22 km/h
Avg max wind
87 %
Avg humidity
Newfoundland and Labrador in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  20° | 2 19° | 3 20° | ||||
| 4  20° | 5 19° | 6  17° | 7  16° | 8 16° | 9 16° | 10 18° |
| 11 20° | 12 22° | 13 19° | 14 16° | 15 17° | 16 18° | 17 18° |
| 18  19° | 19 17° | 20 22° | 21 20° | 22 17° | 23 16° | 24 17° |
| 25  19° | 26 20° | 27 17° | 28 19° | 29 18° | 30  19° | 31  20° |
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Temperatures trend during August in Newfoundland and Labrador
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 | 20° /15° | 0 mm | 5 | |
| 2 Aug. | Overcast | 19° /12° | 2.9 mm | 5 | |
| 3 Aug. | Overcast | 20° /12° | 0 mm | 6 | |
| 4 Aug. | Cloudy | 20° /13° | 0.2 mm | 5 | |
| 5 Aug. | Overcast | 19° /14° | 0.1 mm | 5 | |
| 6 Aug. | Moderate or heavy rain shower | 17° /13° | 10.2 mm | 4 | |
| 7 Aug. | Patchy rain possible | 16° /12° | 0.3 mm | 4 | |
| 8 Aug. | Patchy rain possible | 16° /12° | 0.3 mm | 4 | |
| 9 Aug. | Patchy rain possible | 16° /11° | 0.2 mm | 4 | |
| 10 Aug. | Moderate or heavy rain shower | 18° /13° | 7.2 mm | 4 | |
| 11 Aug. | Patchy rain possible | 20° /15° | 4.3 mm | 5 | |
| 12 Aug. | Moderate or heavy rain shower | 22° /16° | 6 mm | 5 | |
| 13 Aug. | Overcast | 19° /13° | 3.6 mm | 4 | |
| 14 Aug. | Patchy rain possible | 16° /12° | 4 mm | 4 | |
| 15 Aug. | Overcast | 17° /11° | 0.9 mm | 5 | |
| 16 Aug. | Patchy rain possible | 18° /12° | 0.3 mm | 5 | |
| 17 Aug. | Overcast | 18° /12° | 0 mm | 5 | |
| 18 Aug. | Partly cloudy | 19° /13° | 0 mm | 6 | |
| 19 Aug. | Moderate rain at times | 17° /14° | 9.3 mm | 4 | |
| 20 Aug. | Moderate rain at times | 22° /15° | 5 mm | 5 | |
| 21 Aug. | Patchy rain possible | 20° /14° | 4.9 mm | 5 | |
| 22 Aug. | Moderate or heavy rain shower | 17° /13° | 15 mm | 4 | |
| 23 Aug. | Moderate or heavy rain shower | 16° /11° | 12.8 mm | 4 | |
| 24 Aug. | Overcast | 17° /13° | 0.6 mm | 4 | |
| 25 Aug. | Sunny | 19° /12° | 0 mm | 6 | |
| 26 Aug. | Overcast | 20° /13° | 0 mm | 5 | |
| 27 Aug. | Partly cloudy | 17° /13° | 5.9 mm | 5 | |
| 28 Aug. | Light rain shower | 19° /14° | 3 mm | 5 | |
| 29 Aug. | Sunny | 18° /12° | 3.5 mm | 5 | |
| 30 Aug. | Moderate rain | 19° /11° | 13.6 mm | 5 | |
| 31 Aug. | Heavy rain | 20° /14° | 83.2 mm | 6 | |
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Important Notice
Our weather forecast for Newfoundland and Labrador 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 Newfoundland and Labrador forecast closer to your planned date for the most up-to-date weather information.
Newfoundland and Labrador in August - FAQ
What are the expected maximum and minimum temperatures in Newfoundland and Labrador during August?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Newfoundland and Labrador during August?
Significant rainfall exceeding 312.2 mm is expected in Newfoundland and Labrador during August, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Newfoundland and Labrador during August?
The average wind speed in Newfoundland and Labrador during August is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Newfoundland and Labrador
Explore the daily rainfall trends and prepare for Newfoundland and Labradors August weather 💧
UV exposure in Newfoundland and Labrador during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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