Saint John, New Brunswick — Complete Weather for October 2025
For your BevNice.ca website, a complete October 2025 weather report should cover October 1–31, 2025, including daily temperatures, rainfall, wind, and notable weather events in Saint John, New Brunswick.
Because October 2025 is in the past, the report should use historical observations rather than today’s forecast. It is also useful to include monthly averages for comparison with the actual weather.
October 2025 weather summary
Average temperature
11°C
Monthly precipitation
45.3 mm
Average daily high
12.9°C
Average daily low
8.7°C
Monthly figures from a historical weather summary; other providers report different precipitation totals depending on their station and measurement method.
Daily weather calendar — October 1–31
The following calendar gives reported daily conditions, temperatures and precipitation for Saint John. Temperatures are in Celsius and rainfall is in millimetres.
| Date | Conditions | Low | High | Rain |
|---|---|---|---|---|
| Oct. 1 | Partly cloudy | 10° | 14° | 0.0 mm |
| Oct. 2 | Sunny | 5° | 17° | 0.0 mm |
| Oct. 3 | Sunny | 10° | 18° | 0.0 mm |
| Oct. 4 | Cloudy | 12° | 18° | 0.0 mm |
| Oct. 5 | Partly cloudy | 12° | 15° | 0.0 mm |
| Oct. 6 | Mist | 11° | 14° | 0.0 mm |
| Oct. 7 | Overcast | 13° | 14° | 0.0 mm |
| Oct. 8 | Light rain | 13° | 15° | 11.2 mm |
| Oct. 9 | Sunny | 5° | 10° | 0.6 mm |
| Oct. 10 | Sunny | 5° | 12° | 0.0 mm |
| Oct. 11 | Sunny | 8° | 16° | 0.0 mm |
| Oct. 12 | Partly cloudy | 8° | 14° | 0.0 mm |
| Oct. 13 | Cloudy | 9° | 14° | 0.0 mm |
| Oct. 14 | Overcast | 8° | 12° | 0.0 mm |
| Oct. 15 | Cloudy | 9° | 12° | 0.0 mm |
| Oct. 16 | Overcast | 7° | 9° | 0.0 mm |
| Oct. 17 | Overcast | 8° | 11° | 0.0 mm |
| Oct. 18 | Overcast | 9° | 12° | 0.0 mm |
| Oct. 19 | Overcast | 8° | 13° | 0.0 mm |
| Oct. 20 | Mist | 9° | 11° | 0.0 mm |
| Oct. 21 | Cloudy | 12° | 13° | 10.4 mm |
| Oct. 22 | Overcast | 11° | 14° | 15.0 mm |
| Oct. 23 | Overcast | 10° | 13° | 1.0 mm |
| Oct. 24 | Sunny | 10° | 13° | 0.0 mm |
| Oct. 25 | Cloudy | 8° | 13° | 0.0 mm |
| Oct. 26 | Partly cloudy | 4° | 10° | 0.0 mm |
| Oct. 27 | Overcast | 5° | 8° | 0.0 mm |
| Oct. 28 | Overcast | 7° | 8° | 0.0 mm |
| Oct. 29 | Sunny | 4° | 13° | 0.0 mm |
| Oct. 30 | Overcast | 8° | 10° | 0.0 mm |
| Oct. 31 | Light rain | 12° | 15° | 7.1 mm |
Source: Where And When — October 2025 historical weather. These are third-party historical estimates, not a verified Environment Canada daily observation table. The reported daily rainfall entries may not account for every precipitation event.
Notable weather during the month
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October 1–5: Mild early-autumn conditions, with daytime highs reaching 18°C.
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October 8: A wet day, with approximately 11.2 mm of reported precipitation.
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October 14–20: A stretch of cool, cloudy and damp weather.
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October 21–23: Another wet period, including reported rainfall of 10.4 mm on October 21 and 15.0 mm on October 22.
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October 26–30: Cooler late-month temperatures, with highs falling to around 8–13°C.
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October 31: Rain returned on Halloween, with approximately 7.1 mm reported.
Official historical weather records
For a fully verified climate report suitable for publication, use Environment and Climate Change Canada’s historical records for the Saint John A station.
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Environment Canada — Historical Climate Data
Environment and Climate Change Canada+1 -
Weather Spark — October 2025 weather history
Publication note for BevNice.ca: The calendar above is useful as a historical overview, but I recommend checking the official station data before describing it as a complete, authoritative record of daily rainfall, wind speeds, gusts or temperature extremes.