Historical Highlights

American Revolutionary Raid, 1775

On August 27, 1775, just a few days shy of August 30, American privateers from Machias, Massachusetts, attacked Saint John, burning Fort Frederick and capturing livestock intended for British forces in Boston While that exact date isn’t August 30, it’s one of the few documented martial events around this time in Saint John’s recorded history.

Sea Glass Festival — Today!

Fast-forwarding to modern times, the Saint John Seaglass Festival is an ongoing local tradition, running August 29 and 30. It takes place at Market Square Atrium (1 Market Square, Saint John, NB) from 9:00 AM to 5:00 PM, celebrating fragile treasures of sea glass with art displays, vendors, contests, raffles, and maritime-inspired fun

Saint John Exhibition

Another significant seasonal event is the Saint John Exhibition, a longstanding agricultural and entertainment fair traditionally held in August at Exhibition Park. It features midway rides, harness racing, food, and more — a highlight of the region’s summer fairs 

Weather Around August 30 in Saint John

Historical Weather Data

• Typical high temperatures in August range around 22–23 °C (71–73 °F), with lows around 11–15 °C (52–59 °F) 

• August traditionally has the fewest wet days in the year — averaging just 8 days with measurable precipitation 

• Average precipitation for the full month is about 111–112 mm (4.4 in), often spread over roughly 7 rain days 

• A typical August day sees about 13.5 hours of sunshine, with a 25% chance of rain and mild breezes (~10.5 mph or 17 kph)

Summary Table