St. John's
August
Weather in St. John's for August 2027
Your guide to St. John's weather in August - trends and predictions
In general, the average temperature in St. John's at the beginning of August is 17.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 19.5 °C by the end of August.
The climate of St. John's in August is notably wet, with an average of 11 rainy days, and a total of 130.6 mm of precipitation.
Is August a good time to visit St. John's? check out the best time to travel to St. John's page.
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Temperatures
Rain 🌧️
More
20
Dry days
11
Rainy days
0
Snow days
18°/13°
Temperatures
23 km/h
Avg max wind
82 %
Avg humidity
St. John's Weather August
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Temperatures trend during August in St. John's
See the weather trend as well as the moving average line
August weather in St. John's day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Overcast | 18° /14° | 0.3 mm | 4 | |
| 2 Aug. |  Patchy rain possible | 17° /12° | 1.5 mm | 4 | |
| 3 Aug. | Overcast | 19° /12° | 0 mm | 5 | |
| 4 Aug. |  Light rain | 19° /13° | 3.2 mm | 5 | |
| 5 Aug. | Overcast | 18° /14° | 0.7 mm | 5 | |
| 6 Aug. |  Moderate or heavy rain shower | 16° /12° | 6.1 mm | 3 | |
| 7 Aug. | Overcast | 17° /12° | 0.2 mm | 5 | |
| 8 Aug. | Patchy rain possible | 18° /12° | 0.2 mm | 4 | |
| 9 Aug. | Overcast | 17° /12° | 0.1 mm | 5 | |
| 10 Aug. | Light rain | 18° /13° | 3.6 mm | 5 | |
| 11 Aug. | Light rain | 20° /15° | 2.7 mm | 5 | |
| 12 Aug. | Light rain | 22° /16° | 3.2 mm | 5 | |
| 13 Aug. | Patchy rain possible | 20° /14° | 1.8 mm | 6 | |
| 14 Aug. | Light rain | 18° /14° | 4 mm | 4 | |
| 15 Aug. | Light rain | 18° /12° | 3.1 mm | 5 | |
| 16 Aug. | Patchy rain possible | 16° /11° | 0.6 mm | 4 | |
| 17 Aug. | Overcast | 18° /11° | 0.4 mm | 5 | |
| 18 Aug. |  Partly cloudy | 19° /12° | 0.1 mm | 6 | |
| 19 Aug. | Light rain | 16° /12° | 7.2 mm | 4 | |
| 20 Aug. | Light rain | 19° /14° | 6.8 mm | 4 | |
| 21 Aug. | Light rain | 20° /14° | 2.6 mm | 4 | |
| 22 Aug. | Light rain | 17° /13° | 7.5 mm | 5 | |
| 23 Aug. | Moderate or heavy rain shower | 16° /11° | 6.5 mm | 3 | |
| 24 Aug. | Patchy rain possible | 19° /12° | 0.4 mm | 4 | |
| 25 Aug. | Patchy rain possible | 21° /15° | 1.5 mm | 4 | |
| 26 Aug. | Light rain | 20° /15° | 4.6 mm | 4 | |
| 27 Aug. | Light rain | 20° /14° | 3 mm | 5 | |
| 28 Aug. | Patchy rain possible | 20° /15° | 1.6 mm | 4 | |
| 29 Aug. | Patchy rain possible | 18° /12° | 2 mm | 4 | |
| 30 Aug. |  Moderate rain | 18° /12° | 12.7 mm | 4 | |
| 31 Aug. |  Heavy rain | 19° /13° | 42.3 mm | 4 | |
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Important Notice
Our weather forecast for St. John's 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 St. John's forecast closer to your planned date for the most up-to-date weather information.
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St. John's in August - FAQ
What are the expected maximum and minimum temperatures in St. John's during August?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in St. John's during August?
Significant rainfall exceeding 130.6 mm is expected in St. John's during August, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in St. John's during August?
The average wind speed in St. John's during August is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in St. John's
Explore the daily rainfall trends and prepare for St. John'ss August weather 💧
Typically, St. John's has 11 rainy days in August with a total of 130.6 mm of rainfall.
UV exposure in St. John's during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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