Last updated: April 22, 2025
October in St. John's, Canada, offers a captivating blend of autumnal charm with temperatures ranging from a maximum of 22°C (72°F) to a brisk minimum of 0°C (32°F), averaging around 8°C (48°F). The month is characterized by high humidity levels at 87%, creating a crisp yet pleasant atmosphere. Rainfall is frequent, with 12 days of precipitation contributing to a total of 97 mm (3.8 in), nourishing the vibrant fall foliage. This transitional period showcases the beauty of nature, making it an ideal time for exploration and experiencing the scenic splendor of the region.
In October, St. John's welcomes the crisp embrace of autumn, with temperatures starting to cool after the warm embrace of summer. The month typically experiences a minimum temperature of 0°C (32°F), while the average settles at a comfortable 8°C (48°F), making it a pleasant time for outdoor activities. With a maximum of 22°C (72°F), October can still offer those last glimpses of warmth, inviting residents and visitors alike to enjoy the colorful foliage and picturesque landscapes. As October fades, the temperatures dip, hinting at the chill of winter ahead, making this month a transitional gem in St. John's climate calendar.
In October, St. John's experiences a notable rainfall, with an average precipitation of 97 mm (3.8 in) over 12 days. This amount subtly reflects the transition from the milder conditions of summer to the brisk chill of winter, making October one of the wetter months. Following September's 107 mm (4.2 in), October showcases a slight decrease in precipitation, yet it maintains a steady presence of rainy days. This pattern of consistent precipitation hints at the area's coastal climate, where moisture-laden air often brings rain as the seasons shift. As the region prepares for the colder months ahead, October's dampness serves as a reminder of the changing weather patterns unique to St. John's.
As October settles in St. John's, Canada, the humidity begins to wane slightly, resting at 87%—a noticeable drop from the height of summer when levels peaked at 94% in July. This gradual decline marks the transition from the muggy warmth of summer towards the crispness of autumn, as humidity levels progressively decrease from 90% in September. The pattern reveals a comforting rhythm throughout the year, with the coastal city's humidity consistently high, particularly from May to August, where it hovers between 90% and 94%. As winter approaches, humidity levels are expected to stabilize around the 84% to 83% mark in the subsequent months, offering a refreshing change while retaining the inherent moisture that characterizes this vibrant maritime locale.
In October, St. John's experiences a moderate UV Index of 4, suggesting that while the sun is less intense than the peak summer months, it's still important to be cautious. The burn time increases to 30 minutes, giving residents and visitors a little more leeway compared to the sizzling days of July and August, where the UV Index soared to 9 and 10 respectively. After a summer of very high UV levels, the gradual decline into autumn is noticeable, shifting from high levels in September to the more manageable conditions of October. As winter approaches, the UV readings will continue to drop, reaching a low of 1 by December. Even so, it’s vital to stay informed about UV risks throughout the year by checking resources like St. John's UV Index.
UV Risk Categories
October in St. John's, Canada, marks a transition as summer's glorious days gradually fade, offering 175 hours of sunlight—a delightful yet diminishing glow compared to the vibrant summer months. After basking in the abundant 306 hours of sunshine in August and the still generous 251 hours in September, October signals a shift in the seasonality of light. Though the daylight diminishes, this month often brings a stunning array of autumn colors, making each sunlit moment feel even more precious against the backdrop of falling leaves. As the year progresses towards the colder months, October serves as a gentle reminder of the bright days behind, while quietly inviting the cozy ambiance of winter ahead.
In St. John's, Canada, October brings a 20% chance of sunny weather, a modest figure that reflects the transition into the colder months. As the autumn leaves start to fall, the likelihood of sunshine is slightly higher than in the spring months but markedly lower than September's peak of 38%. This trend indicates a gradual decline in sunny days as the year progresses, with brighter possibilities lingering only until early October before the winter chill sets in. While daylight may dwindle, the vibrant fall colors provide their own kind of beauty, reminding us that even amid the clouds, there are still moments of brilliance to be found.
As autumn settles in St. John's, Canada, October brings a noticeable shift in daylight, averaging 10 hours of sunlight each day. This reduction from the blissful 15 hours enjoyed in summer signals the gradual transition towards winter, following a month where daylight still lingers longer. The daylight duration has been steadily decreasing since its peak in June, with October's sun marking a distinct change from the vibrant summer months. As the year draws to a close, the sunlight continues to wane, leading into November with just 9 hours of daylight. This trend highlights the natural ebb and flow of light throughout the seasons, reminding us of the cyclical rhythm of nature in this beautiful part of Canada.
As October rolls into St. John's, Canada, the average wind speed picks up slightly to 5.9 m/s (13 mph), making it a brisk month that signals the transition to winter. This increase follows a steady decline from summer's calmest days, where winds dipped to 4.7 m/s (11 mph) in July. Interestingly, October's winds are just a touch below the November average of 6.0 m/s (14 mph), hinting at the rising gusts of late fall. With the winds gaining momentum as the temperature dips, October sets the stage for a lively atmosphere, combining the remnants of autumn's warmth with the spirited breezes that prepare the city for the winter ahead.
The weather in St. John's changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in St. John's and find detailed weather information for every month.
October and January present stark contrasts in weather conditions. In October, temperatures average around 8°C (48°F), with daytime highs reaching up to 22°C (72°F) and chilly nights that can drop to 0°C (32°F). The month is characterized by high humidity at 87% and moderate precipitation of 97 mm (3.8 in) over 12 days. In contrast, January brings frigid temperatures, with an average of -2°C (29°F) and lows plummeting to -14°C (7°F), while highs only reach 12°C (54°F). Although precipitation slightly increases to 113 mm (4.5 in) over 13 days, January has a lower humidity level of 83%. For more details, you can check St. John's weather in January.
In October, the weather tends to be milder with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 22°C (72°F), averaging around 8°C (48°F). Despite the more comfortable temperatures, October does see a substantial amount of precipitation, with 97 mm (3.8 in) falling over 12 days, accompanied by high humidity at 87%.
In contrast, February is much colder, with temperatures dipping as low as -16°C (3°F) and averaging -3°C (26°F), peaking at just 10°C (50°F). While February also experiences significant precipitation, totaling 102 mm (4.0 in) over the same number of days, the humidity is slightly lower at 84%. For a detailed look at the conditions during this winter month, check out St. John's weather in February.
October and March present contrasting weather characteristics, reflective of the changing seasons. In October, temperatures range from a minimum of 0°C (32°F) to a comfortable maximum of 22°C (72°F), with an average of 8°C (48°F). The month sees about 97 mm (3.8 in) of precipitation over 12 days, accompanied by high humidity at 87%. In contrast, March is notably colder, with temperatures dipping as low as -14°C (8°F) and peaking at 13°C (55°F), averaging -2°C (29°F). Precipitation remains similar, totaling 100 mm (3.9 in) across 13 days, though humidity is slightly lower at 85%. For a more detailed look at March conditions, visit St. John's weather in March.
When comparing the weather in October and April, we notice notable differences in temperature and precipitation patterns. October presents milder temperatures with a minimum of 0°C (32°F) and an average of 8°C (48°F), compared to April's chillier minimum of -6°C (22°F) and an average of 2°C (36°F). Both months experience similar levels of precipitation, with October receiving about 97 mm (3.8 in) across 12 days and April slightly higher at 103 mm (4.0 in) across 14 days. Humidity levels are comparable as well, with October at 87% and April at 88%. For more details, check out St. John's weather in April.
October and May exhibit distinct weather characteristics, with October featuring a broader temperature range, including a maximum of 22°C (72°F) compared to May's maximum of 20°C (68°F). While October averages a mild 8°C (48°F), May's average temperature is slightly cooler at 5°C (41°F). The two months share a similar number of precipitation days at 12, but October experiences more rainfall overall, totaling 97 mm (3.8 in) compared to May's 80 mm (3.1 in). Additionally, October has a slightly lower humidity level at 87%, whereas May has a higher humidity at 90%. For more detailed information, you can check St. John's weather in May.
In comparing the weather between October and June, we observe notable differences in temperature and precipitation. October experiences a broader temperature range with a maximum of 22°C (72°F), while June peaks at 24°C (75°F), making June slightly warmer overall. Both months have similar minimum temperatures, starting from 0°C (32°F) in October and 0°C (33°F) in June. Precipitation levels are fairly close, with October receiving 97 mm (3.8 in) over 12 days and June having slightly less at 86 mm (3.4 in) across the same number of days. Humidity levels are higher in October at 87%, compared to June’s 91%. For more information, visit St. John's weather in June.
October weather is cooler than July, with average temperatures ranging from a minimum of 0°C (32°F) to a maximum of 22°C (72°F), compared to July's minimum of 6°C (43°F) and maximum of 25°C (76°F). While both months experience similar levels of precipitation, with October recording 97 mm (3.8 in) over 12 days and July at 100 mm (3.9 in) over 10 days, October's higher humidity at 87% makes it feel quite damp. In contrast, July has a slightly higher humidity level at 94%, contributing to its warmer feel. For a more detailed comparison, you can check St. John's weather in July.
October tends to be cooler and more variable compared to August. With minimum temperatures dropping to around 0°C (32°F) and an average of 8°C (48°F), October reflects the onset of fall, while August stays warmer with its minimum temperatures around 8°C (46°F) and an average of 17°C (62°F). The maximum temperature in October reaches only 22°C (72°F), significantly lower than August's 27°C (80°F). Additionally, October experiences increased rainfall, with 97 mm (3.8 in) over 12 days, compared to August's 69 mm (2.7 in) spread over 10 days. Humidity is relatively high in both months, but at 87% in October, it slightly lessens from August's 93%. For a more detailed view of the weather, you can visit St. John's weather in August.
In comparing the weather of October to September, October tends to be cooler with average temperatures dropping from 13°C (56°F) in September to just 8°C (48°F). The minimum temperature in October can reach as low as 0°C (32°F), while September's minimum is more mild at 4°C (39°F). Additionally, both months experience significant precipitation, with October receiving slightly less at 97 mm (3.8 in) compared to September's 107 mm (4.2 in). However, October has similar rainfall days, totaling 12 days, while September has 11 days of precipitation. Humidity levels remain high in both months, with October at 87% slightly lower than September's 90%. For more detailed information, you can explore St. John's weather in September.
October weather in St. John's typically features milder temperatures, with daily averages around 8°C (48°F) and maximums reaching up to 22°C (72°F). The month experiences significant rainfall, totaling about 97 mm (3.8 in) over approximately 12 days, accompanied by relatively high humidity at 87%. In contrast, November sees a pronounced drop in temperatures, with averages falling to 4°C (40°F) and maximums peaking at 16°C (62°F). Precipitation increases slightly to 108 mm (4.3 in), spread over 13 days, while humidity remains lower at 84%. For further details on the specific conditions in St. John's during November, visit St. John's weather in November.
In comparing the weather of October and December, October typically experiences milder temperatures, with averages around 8°C (48°F) and a maximum of 22°C (72°F), while December sees a notable drop with an average temperature of 0°C (33°F) and highs of only 15°C (59°F). Rainfall is more frequent in October, with 97 mm (3.8 in) of precipitation over about 12 days, compared to December, which receives 133 mm (5.3 in) over approximately 16 days. Humidity levels are slightly higher in October at 87%, whereas December maintains a relative humidity of 83%. For further details, you can check St. John's weather in December.
As October unfolds in St. John's, the transition to fall becomes strikingly evident. The weather showcases a dynamic range, with temperatures dipping to their lowest for the year, while the landscape transforms with vibrant autumn hues. With higher humidity levels and regular rainfall, expect a mix of crisp air and frequent showers, making it distinct from the milder and drier conditions of earlier months. This blend creates a unique atmosphere, inviting residents and visitors alike to embrace the beauty of the season. For a deeper understanding of how October fits into the broader climate patterns, explore St. John's Climate.