The best time to go to Chatham, New Brunswick, is during the summer months, from June to August, when the weather is warmest and most activities are available.During this period, you can expect average daily temperatures ranging from 20°C to 25°C (68°F to 77°F), making it ideal for exploring the Miramichi River and its surroundings. This is the prime season for outdoor pursuits like salmon fishing, boating, and enjoying local festivals. The longer daylight hours also allow for extended sightseeing and relaxation.For travelers who enjoy fishing, particularly for Atlantic salmon, late June through September offers excellent conditions. The river is well-stocked, and many local guides operate during these months. This period is superb for those looking for an active, nature-focused trip.If you prefer to avoid the peak tourist season but still want pleasant weather, early September can also be a good option. Temperatures are still mild, and the fall foliage begins to appear, offering a picturesque backdrop for your visit.