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Hourly Forecast
Daylight Hours
07:22
Sunrise
19:07
Sunset
Moon
Waxing Gibbous
18:40
Moonrise
05:55
Moonset
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View stargazing scoreWeather in Saint John today, September 25, 2026
Cloud cover dominates in Saint John on September 25, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 84% by 11:00. Outdoor plans early on should not rely on bright skies.
Expect highs of 21°C and cooler readings close to 9°C. Moisture in the air spans 57%-88%, with the highest values around 03:00. Expect gentle winds, highest near 21:00 at 3.6 km/h.
Through the afternoon cloud remains the main feature, with cover near 100% around 18:00. Bright spells should stay limited even as the day wears on. Views remain open at about 16.1 km. Sunrise is at 07:22 and sunset at 19:07, giving 11 hours 45 minutes of sunlight today.
The practical takeaway for Saint John on September 25, 2026 is a cloudy day that stays usable, just not particularly bright, around 21°C.
Frequently asked questions about weather in Saint John
How warm does it get in Saint John?
The warmest month in Saint John is August, with average high temperatures of 19°C. The average temperature during this period is around 17°C.
How cold does it get in Saint John?
The coldest month in Saint John is February, with average low temperatures of -7°C. The average temperature during this period is around -3°C.
What is the wettest time of year in Saint John?
The wettest month in Saint John is December, with an average of 139mm of precipitation.
What is the driest time of year in Saint John?
The driest month in Saint John is July, with an average of 91mm of precipitation.
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