AI-generatedSummerside at a glance
- Best time
- Aug
- Warmest month
- Jul · 24°
- Warmest sea
- Aug · 19.0°
- Sunshine a year
- 2,040 h
- Rain a year
- 1,055 mm
- Climate
- Continental
- Time zone
- UTC−4 / UTC−3
- Elevation
- 0 m
Climate in Summerside
Summerside has mild to warm summers and cold winters with occasional snow. July is the warmest month with average highs of 24 °C, while February is the coolest at −3 °C. With around 2,040 hours of sunshine a year, Summerside is moderately sunny; July is the sunniest month with 8.3 hours a day.
Holiday weather through the year
Best time to visit Summerside
The best time to visit Summerside is in August. The sea stays too cool for a classic beach holiday: even in August it only reaches 19.0 °C. For sightseeing, day trips and hiking, conditions are most comfortable from June to September. Rain is frequent in March and in December; the wettest month is December with 105 mm.
Summerside through the seasons
How the weather changes over the seasons, with averages for each.
Summerside in spring
Mar – May
Poor
- 1–14 °C by day
- Sea 2 °C
- 6.4 h of sun a day
- 36 rainy days in all
Summerside in summer
Jun – Aug
Fair
- 19–24 °C by day
- Sea 16 °C
- 8.0 h of sun a day
- 33 rainy days in all
Summerside in autumn
Sep – Nov
Poor
- 7–20 °C by day
- Sea 13 °C
- 4.7 h of sun a day
- 32 rainy days in all
Summerside in winter
Dec – Feb
Poor
- −2–2 °C by day
- Sea 1 °C
- 3.3 h of sun a day
- 36 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Jun – Sep
15–28 °C and not too much rain
Rainy months
Mar, Dec
Rainy season or more than 12 rainy days
Snow
Nov – Apr
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Summerside for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: August
Where to go in OctoberSea temperature in October
A typical day in October
- Morning, 08:00: about 7°
- Midday, 13:00: about 13°
- Afternoon, 16:00: about 13°
- Evening, 20:00: about 10°
- Night, 23:00: about 9°
07:3118:31
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:12–08:12 · evening 17:50–18:49
- Blue hour
- Morning 07:00–07:12 · evening 18:49–19:01
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Summerside compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 16° at the start of the month to 10° at the end. The sea cools from 15° to 10°. The days get 1.6 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 16° | 10° |
| Night-time low | 9° | 4° |
| Sea | 15° | 10° |
| Daylight | 11.8 h | 10.2 h |
What is the weather like in Summerside in October?
In October, Summerside is cool: daytime highs average 14 °C, and nights cool down to about 7 °C. The sea averages 13.0 °C – swimming is only for the hardy. Expect around 4.5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 94 mm in total. It is often windy: on a typical day the wind peaks at around 28 km/h. All in all, October is not an ideal month for a holiday in Summerside.
More details for October
- Daylight
- 11 h 0 min07:31 – 18:31
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 28 km/haverage daily peakAll months
- Cloud cover
- 64 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−3offset from UTC
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %25 %
- Few rainy daysweight 20 %51 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
- Windproof jacket
Compare two months in Summerside
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
August has the better holiday weather in Summerside: score 60 against 15. In August, days are 10 °C warmer than in October. The sea is 6 °C warmer in August. The sun shines 3 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Holiday weather score | 15 | 60better |
| Daytime high | 14° | 24° |
| Night-time low | 7° | 15° |
| Sea | 13.0° | 19.0° |
| Sunshine | 4.5 h | 7.8 hbetter |
| Rainy days | 11 | 11 |
| Rainfall | 94 mm | 79 mmbetter |
| Muggy days | 0better | 5 |
Based on the climate averages 1996–2025.
Summerside month by month
The typical weather for every month at a glance.
9January−2° · Sea 0° · 3.0 h
In January, Summerside is bitterly cold: daytime highs average −2 °C, and nights often drop below freezing (−10 °C). The sea averages −0.3 °C – swimming is only for the hardy. The sun is scarce, with only about 3.0 hours a day. Precipitation falls on about 12 days, totalling 90 mm; on about 9 of them it snows. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, January is not an ideal month for a holiday in Summerside.
Summerside in January15February−2° · Sea −1° · 4.4 h
In February, Summerside is bitterly cold: daytime highs average −3 °C, and nights often drop below freezing (−10 °C). The sea averages −0.7 °C – swimming is only for the hardy. Expect around 4.4 hours of sunshine a day. Precipitation falls on about 11 days, totalling 81 mm; on about 8 of them it snows. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, February is not an ideal month for a holiday in Summerside.
Summerside in February16March1° · Sea −1° · 5.4 h
In March, Summerside is bitterly cold: daytime highs average 1 °C, and nights often drop below freezing (−6 °C). The sea averages −0.6 °C – swimming is only for the hardy. Expect around 5.4 hours of sunshine a day. Precipitation falls on about 12 days, totalling 89 mm; on about 7 of them it snows. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, March is not an ideal month for a holiday in Summerside.
Summerside in March20April7° · Sea 1° · 6.4 h
In April, Summerside is cold: daytime highs average 7 °C, and nights cool down to about 0 °C. The sea averages 1.3 °C – swimming is only for the hardy. Expect around 6.4 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 81 mm in total. Snow falls on about 3 days. All in all, April is not an ideal month for a holiday in Summerside.
Summerside in April24May14° · Sea 6° · 7.4 h
In May, Summerside is cool: daytime highs average 14 °C, and nights cool down to about 5 °C. The sea averages 6.4 °C – swimming is only for the hardy. The sun shines for around 7.4 hours a day. Rain is frequent, with about 11 rainy days and 75 mm in total. All in all, May is not an ideal month for a holiday in Summerside.
Summerside in May27June19° · Sea 12° · 7.9 h
In June, Summerside is mild: daytime highs average 19 °C, and nights cool down to about 11 °C. The sea averages 12.4 °C – swimming is only for the hardy. The sun shines for around 7.9 hours a day. Rain is frequent, with about 12 rainy days and 87 mm in total. All in all, June is not an ideal month for a holiday in Summerside.
Summerside in June57July24° · Sea 17° · 8.3 h
In July, Summerside is warm: daytime highs average 24 °C, and nights cool down to about 15 °C. The sea averages 17.4 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8.3 hours a day. Rain is frequent, with about 11 rainy days and 80 mm in total. All in all, July is a so-so month for a holiday in Summerside.
Summerside in July60August24° · Sea 19° · 7.8 h
In August, Summerside is warm: daytime highs average 24 °C, and nights cool down to about 15 °C. The sea averages 19.0 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7.8 hours a day. Rain is frequent, with about 11 rainy days and 79 mm in total. All in all, August is a good month for a holiday in Summerside.
Summerside in August28September20° · Sea 17° · 6.4 h
In September, Summerside is mild: daytime highs average 20 °C, and nights cool down to about 12 °C. The sea averages 17.1 °C – bracing, so a wetsuit helps for longer swims. Expect around 6.4 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 93 mm in total. All in all, September is not an ideal month for a holiday in Summerside.
Summerside in September15October14° · Sea 13° · 4.5 h
In October, Summerside is cool: daytime highs average 14 °C, and nights cool down to about 7 °C. The sea averages 13.0 °C – swimming is only for the hardy. Expect around 4.5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 94 mm in total. It is often windy: on a typical day the wind peaks at around 28 km/h. All in all, October is not an ideal month for a holiday in Summerside.
Summerside in October10November7° · Sea 8° · 3.1 h
In November, Summerside is cold: daytime highs average 7 °C, and nights cool down to about 1 °C. The sea averages 7.5 °C – swimming is only for the hardy. The sun is scarce, with only about 3.1 hours a day. Rain is frequent, with about 11 rainy days and 102 mm in total. Snow falls on about 3 days. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, November is not an ideal month for a holiday in Summerside.
Summerside in November7December2° · Sea 2° · 2.5 h
In December, Summerside is bitterly cold: daytime highs average 2 °C, and nights often drop below freezing (−5 °C). The sea averages 2.4 °C – swimming is only for the hardy. The sun is scarce, with only about 2.5 hours a day. Precipitation falls on about 13 days, totalling 105 mm; on about 7 of them it snows. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, December is not an ideal month for a holiday in Summerside.
Summerside in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Summerside
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
ColdOctober: nights around 7°. The room should be heated.
The coolest nights are in February (−10°), the warmest in August (15°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from October to May, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 9 | −2° | −10° | −0.3° | 3.0 h | 12 | 90 |
| FebruaryFeb | 15 | −3° | −10° | −0.7° | 4.4 h | 11 | 81 |
| MarchMar | 16 | 1° | −6° | −0.6° | 5.4 h | 12 | 89 |
| AprilApr | 20 | 7° | 0° | 1.3° | 6.4 h | 12 | 81 |
| MayMay | 24 | 14° | 5° | 6.4° | 7.4 h | 11 | 75 |
| JuneJun | 27 | 19° | 11° | 12.4° | 7.9 h | 12 | 87 |
| JulyJul | 57 | 24° | 15° | 17.4° | 8.3 h | 11 | 80 |
| AugustAug | 60 | 24° | 15° | 19.0° | 7.8 h | 11 | 79 |
| SeptemberSep | 28 | 20° | 12° | 17.1° | 6.4 h | 9 | 93 |
| OctoberOct | 15 | 14° | 7° | 13.0° | 4.5 h | 11 | 94 |
| NovemberNov | 10 | 7° | 1° | 7.5° | 3.1 h | 11 | 102 |
| DecemberDec | 7 | 2° | −5° | 2.4° | 2.5 h | 13 | 105 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
46.39° N, 63.79° W · 0 m · America/Halifax
Sea temperature in Summerside
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 11.4 – 14.2 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Summerside ranges from −0.7 °C in February to 19.0 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
The sea warms up slowly: it is warmest in August, while the air already peaks in July. From November to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 17.9 and 20.3 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | −0.3° | −0.8° | 0.3° | cold |
| FebruaryFeb | −0.7° | −1.4° | −0.1° | cold |
| MarchMar | −0.6° | −1.2° | 0.0° | cold |
| AprilApr | 1.3° | 0.2° | 2.8° | cold |
| MayMay | 6.4° | 4.3° | 8.2° | cold |
| JuneJun | 12.4° | 11.2° | 13.8° | cold |
| JulyJul | 17.4° | 16.3° | 18.6° | fresh |
| AugustAug | 19.0° | 17.9° | 20.3° | fresh |
| SeptemberSep | 17.1° | 15.9° | 18.4° | fresh |
| OctoberOct | 13.0° | 11.4° | 14.2° | cold |
| NovemberNov | 7.5° | 5.9° | 8.8° | cold |
| DecemberDec | 2.4° | 1.6° | 3.7° | cold |
Sunshine hours in Summerside
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 4.5 of 11.0 hours of daylight in Summerside, 41 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain in Summerside: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Summerside has about 11 rainy days with 94 mm of rain in total.
UV index in Summerside
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 8).
Minutes until sunburn in October
- Very fair skin
- about 50 min
- Fair skin
- about 60 min
- Light brown skin
- about 85 min
- Olive skin
- about 110 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind and clouds in Summerside
How breezy and how cloudy Summerside is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Summerside typically peaks at 28 km/h during the day: Beaufort 4, moderate breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting, and here it is that strong all year.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 64 % of the sky over Summerside: variable cloud, with about 4.5 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Summerside
How often the day gets hot in Summerside (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Summerside has about 0 hot days, with an average daytime high of 14 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Snow in Summerside
When Summerside is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, it hardly ever snows in Summerside.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Planning a trip to Summerside
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Summerside in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Summerside has its best school-holiday weather during the summer holidays (score 59) and its weakest during the Christmas holidays (score 8).
- 19
Easter holidays
Mar – Apr
Poor
- 5 °C by day
- Sea 1 °C
- 6.1 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain, Snow
- 25
May half-term
May – Jun
Poor
- 15 °C by day
- Sea 8 °C
- 7.5 h of sun a day
- 11 rainy days a month
- 59
Summer holidays
Jul – Aug
FairBest holidays
- 24 °C by day
- Sea 18 °C
- 8.0 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 15
October half-term
Oct
Poor
- 14 °C by day
- Sea 13 °C
- 4.5 h of sun a day
- 11 rainy days a month
- 8
Christmas holidays
Dec – Jan
Poor
- 0 °C by day
- Sea 1 °C
- 2.8 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain, Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 5 h 55 min
- Distance
- 4,510 km
- Time zone
- UTC−3
- Jet lag
- About 3 days (4 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Compare & alternatives
Summerside compared
Put Summerside side by side with another destination.
Summerside vs Charlottetown
In October the holiday weather in Summerside and Charlottetown is about equally good (score 15 vs 14). During the day it is about as warm in Charlottetown as in Summerside. The sea in Charlottetown is 1 °C warmer. Charlottetown gets one hour less sunshine a day.
| in October | Summerside | Charlottetown |
|---|---|---|
| Holiday weather score | 15 | 14 |
| Daytime high | 14° | 14° |
| Sea | 13° | 14° |
| Sunshine | 5 h | 4 h |
| Rainy days | 11 | 11 |
| Best time | Aug | Jul – Aug |
Through the year
Canada in October: the best places
In October, Summerside ranks 20 among the 31 nearest destinations in this country.
- St. Andrews14°12°57
- 2Yarmouth14°12°56
- 3Wolfville14°13°54
- 4Halifax14°14°53
- 5Digby14°12°51
- 6Antigonish15°50
- 7Miramichi13°49
- 8Saint John14°12°49
- 20SummersideThis page14°13°15
Near Summerside
Other destinations close by.
Places with a climate like Summerside
Destinations whose weather through the year is closest to Summerside's – good alternatives.
Frequently asked questions about Summerside
When is the best time to visit Summerside?
The best time to visit Summerside is in August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Summerside?
The sea temperature in Summerside ranges from −0.7 °C in February to 19.0 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Summerside in October?
Only if you don't mind cold water: in October the sea averages just 13.0 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Summerside?
July is the warmest month, with average highs of 24 °C and nights around 15 °C. February is the coolest month at −3 °C.
When does it rain most in Summerside?
Rain is frequent in March and in December; the wettest month is December with 105 mm. The driest month is May with 75 mm.
How many hours of sunshine does Summerside get?
Summerside gets around 2,040 hours of sunshine a year. The sunniest month is July with 8.3 hours a day; in December there are 2.5 hours a day.
What time zone is Summerside in?
Summerside is on UTC−4 in January and UTC−3 in July.
How long is the flight from London to Summerside?
A nonstop flight from London to Summerside takes about 5 h 55 min, for a straight-line distance of about 4,510 km.
Which school holidays are best for Summerside?
Summerside has its best school-holiday weather during the summer holidays (score 59) and its weakest during the Christmas holidays (score 8). Holiday ratings (0–100): Easter holidays 19, May half-term 25, summer holidays 59, October half-term 15, Christmas holidays 8.