Saint John weather
At 9:30 PM local time it was clear and 3°C (37°F). Little to no rain in the next 24 hours. Best months for weather: Jun–Sep. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Saint John, New Brunswick, Canada.
Current conditions
- Clouds
- 0%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season Jun–SepOff season Nov–Apr
About Saint John weather
Is it raining in Saint John right now?
No. It’s clear and 3° right now. Little to no rain in the next 24 hours.
What’s the weather like in Saint John this week?
Over the next 7 days, expect highs of 9–20° and lows of 0–11°. Rain is likely on 2 of 7 days (Tuesday, Wednesday). The driest day looks like Sunday.
Has it been raining in Saint John lately?
In the past 7 days, Saint John had 1 rainy day and 3.2 mm of rain in total.
What should I pack for Saint John?
For the coming week, bring an umbrella or rain jacket and a warm winter coat.
Saint John weather by month
When is the best time to visit Saint John?
Based on weather alone, the best time to visit Saint John is Jun–Sep, according to NASA's 2001–2025 climate averages. Nov–Apr tends to be the least pleasant. Average highs run from -3°C (26°F) in January to 23°C (74°F) in July.
What is the rainiest month in Saint John?
December is the wettest month, with about 132 mm (5.2 in) of rain on average. August is the driest, with about 87 mm (3.4 in).
What is the hottest month in Saint John?
July is the warmest, with average highs of 23°C (74°F) and lows of 14°C (56°F). January is the coolest, with highs of -3°C (26°F) and lows of -13°C (9°F).
Does Saint John have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is December at about 132 mm (5.2 in).
How warm is the sea in Saint John?
The sea is warmest in August at about 18°C (65°F) and coolest in February at about 1°C (34°F). It stays cool all year.
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine, forecast and current conditions from Open-Meteo. Page updated . How we rate months