| January | The heart of aurora season — long, dark, clear nights under the auroral oval. Brutally cold; come dressed for −30 and it rewards you. |
| February | Prime northern-lights season: the clearest, driest nights of the year. Cold but spectacular — the main reason to come in winter. |
| March | Aurora season at its best, with a little more daylight for dog-sledding and the tundra. The bay is still frozen solid. |
| April | A quiet shoulder month. The lights can still show early on, but the deep-winter trips wind down as daylight returns. |
| May | The in-between month — too late for reliable aurora, too early for belugas and bears. The first birders arrive. |
| June | Birding peaks (the famous Ross's Gull), wildflowers green the tundra, and the first belugas may arrive late in the month under near-endless daylight. |
| July | Beluga season — thousands of whales fill the river estuary. The brief, busy summer: warmest weather and long days, though the bugs are out. |
| August | Belugas linger early on, birds are about, and as the nights darken the first aurora can appear — the best overlap of the year. Books up early. |
| September | A calm, golden shoulder month: the tundra turns red, crowds thin, and the aurora returns on clear nights before bear season. |
| October | Polar bear season begins — bears gather on the coast waiting for the sea ice. Books up far ahead; dress for hard cold. |
| November | Peak polar-bear viewing through about mid-month as the bears head out onto the new ice. The signature Churchill trip — and the busiest. |
| December | The bears have gone to the ice and deep cold sets in, but aurora season opens again on the long, dark nights. Quiet in town. |