AI-generatedKnokke-Heist at a glance
- Best time
- Jul – Aug
- Warmest month
- Aug · 21°
- Warmest sea
- Aug · 19.4°
- Sunshine a year
- 1,820 h
- Rain a year
- 748 mm
- Climate
- Maritime
- Time zone
- UTC+1 / UTC+2
- Elevation
- 5 m
Climate in Knokke-Heist
Knokke-Heist has a maritime climate with moderate summers and cool, often grey winters. August is the warmest month with average highs of 21 °C, while January is the coolest at 6 °C. With around 1,820 hours of sunshine a year, Knokke-Heist is moderately sunny; June is the sunniest month with 7.6 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Poor
Best time to visit: July – August
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 11°
- Midday, 13:00: about 14°
- Afternoon, 16:00: about 15°
- Evening, 20:00: about 13°
- Night, 23:00: about 12°
08:0918:56
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:48–08:54 · evening 18:11–19:17
- Blue hour
- Morning 07:35–07:48 · evening 19:17–19:30
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.
What is the weather like in Knokke-Heist in October?
In October, Knokke-Heist is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 14.7 °C – swimming is only for the hardy. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 14 rainy days and 76 mm in total. All in all, October is not an ideal month for a holiday in Knokke-Heist.
More details for October
- Daylight
- 10 h 48 min08:09 – 18:56
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Brussels
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %15 %
- Few rainy daysweight 20 %31 %
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
Sea temperature in Knokke-Heist
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 13.9 – 15.9 °C
Swimming season: Never above 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Knokke-Heist ranges from 5.8 °C in February to 19.4 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
From November to December 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 18.3 and 20.8 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 6.4° | 4.6° | 8.0° | cold |
| FebruaryFeb | 5.8° | 4.0° | 7.5° | cold |
| MarchMar | 6.5° | 4.3° | 7.9° | cold |
| AprilApr | 9.1° | 8.2° | 10.5° | cold |
| MayMay | 12.5° | 11.0° | 13.7° | cold |
| JuneJun | 15.9° | 14.9° | 16.9° | cold |
| JulyJul | 18.3° | 17.1° | 19.6° | fresh |
| AugustAug | 19.4° | 18.3° | 20.8° | fresh |
| SeptemberSep | 17.9° | 16.6° | 18.8° | fresh |
| OctoberOct | 14.7° | 13.9° | 15.9° | cold |
| NovemberNov | 11.3° | 10.3° | 12.5° | cold |
| DecemberDec | 8.1° | 6.8° | 9.2° | cold |
Sunshine hours in Knokke-Heist
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 3.9 of 10.8 hours of daylight in Knokke-Heist, 36 % of the day.
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.
UV index in Knokke-Heist
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 2 · lowLittle protection needed; sunglasses on bright days.
The sun is strongest in June (UV 7).
Minutes until sunburn in October
- Very fair skin
- about 70 min
- Fair skin
- about 85 min
- Light brown skin
- over 2 h
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, 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.
Rain in Knokke-Heist: 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, Knokke-Heist has about 14 rainy days with 76 mm of rain in total.
Wind and clouds in Knokke-Heist
How breezy and how cloudy Knokke-Heist 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 Knokke-Heist typically peaks at 24 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 gets there all year.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 70 % of the sky over Knokke-Heist: mostly cloudy, with about 3.9 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.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Knokke-Heist
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
CoolOctober: nights around 10°. A duvet at night and a jumper for the evening.
The coolest nights are in January (3°), the warmest in August (16°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from November to April, 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 | 8 | 6° | 3° | 6.4° | 2.2 h | 12 | 62 |
| FebruaryFeb | 10 | 7° | 3° | 5.8° | 3.1 h | 11 | 54 |
| MarchMar | 15 | 10° | 4° | 6.5° | 4.6 h | 11 | 51 |
| AprilApr | 24 | 13° | 7° | 9.1° | 6.8 h | 10 | 44 |
| MayMay | 23 | 16° | 10° | 12.5° | 7.3 h | 12 | 60 |
| JuneJun | 28 | 19° | 13° | 15.9° | 7.6 h | 10 | 57 |
| JulyJul | 39 | 21° | 15° | 18.3° | 7.5 h | 12 | 65 |
| AugustAug | 44 | 21° | 16° | 19.4° | 7.1 h | 12 | 72 |
| SeptemberSep | 23 | 19° | 13° | 17.9° | 5.6 h | 10 | 61 |
| OctoberOct | 9 | 15° | 10° | 14.7° | 3.9 h | 14 | 76 |
| NovemberNov | 5 | 10° | 7° | 11.3° | 2.2 h | 14 | 74 |
| DecemberDec | 5 | 7° | 4° | 8.1° | 1.7 h | 14 | 73 |
Climate averages 1996–2025, 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
51.35° N, 3.27° E · 5 m · Europe/Brussels
Best time to visit Knokke-Heist
The best time to visit Knokke-Heist is from July to August. The sea stays too cool for a classic beach holiday: even in August it only reaches 19.4 °C. For sightseeing, day trips and hiking, conditions are most comfortable from May to September. Rain is most frequent from October to January; the wettest month is October with 76 mm.
Knokke-Heist through the seasons
How the weather changes over the seasons, with averages for each.
Knokke-Heist in spring
Mar – May
Poor
- 10–16 °C by day
- Sea 9 °C
- 6 h of sun a day
- 33 rainy days in all
Knokke-Heist in summer
Jun – Aug
Poor
- 19–21 °C by day
- Sea 18 °C
- 7 h of sun a day
- 34 rainy days in all
Knokke-Heist in autumn
Sep – Nov
Poor
- 10–19 °C by day
- Sea 15 °C
- 4 h of sun a day
- 38 rainy days in all
Knokke-Heist in winter
Dec – Feb
Poor
- 6–7 °C by day
- Sea 7 °C
- 2 h of sun a day
- 38 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Knokke-Heist for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Compare two months in Knokke-Heist
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 Knokke-Heist: score 44 against 9. In August, days are 6 °C warmer than in October. The sea is 5 °C warmer in August. August has 2 fewer rainy days. The sun shines 3 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Weather score | 9 | 44better |
| Day high | 15° | 21° |
| Night low | 10° | 16° |
| Sea | 14.7° | 19.4° |
| Sunshine | 3.9 h | 7.1 hbetter |
| Rainy days | 14 | 12better |
| Rainfall | 76 mm | 72 mm |
| Muggy days | 0better | 1 |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
May – Sep
15–28 °C and not too much rain
Rainy months
Oct – Jan
12 or more rainy days
Knokke-Heist month by month
The typical weather for every month at a glance.
8January6° · Sea 6° · 2 h
In January, Knokke-Heist is cold: daytime highs average 6 °C, and nights cool down to about 3 °C. The sea averages 6.4 °C – swimming is only for the hardy. The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 12 rainy days and 62 mm in total. All in all, January is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in January10February7° · Sea 6° · 3 h
In February, Knokke-Heist is cold: daytime highs average 7 °C, and nights cool down to about 3 °C. The sea averages 5.8 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 11 rainy days and 54 mm in total. All in all, February is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in February15March10° · Sea 7° · 5 h
In March, Knokke-Heist is cold: daytime highs average 10 °C, and nights cool down to about 4 °C. The sea averages 6.5 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 51 mm in total. All in all, March is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in March24April13° · Sea 9° · 7 h
In April, Knokke-Heist is cool: daytime highs average 13 °C, and nights cool down to about 7 °C. The sea averages 9.1 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 10 rainy days and 44 mm in total. All in all, April is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in April23May16° · Sea 13° · 7 h
In May, Knokke-Heist is mild: daytime highs average 16 °C, and nights cool down to about 10 °C. The sea averages 12.5 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 60 mm in total. All in all, May is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in May28June19° · Sea 16° · 8 h
In June, Knokke-Heist is mild: daytime highs average 19 °C, and nights cool down to about 13 °C. The sea averages 15.9 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain is frequent, with about 10 rainy days and 57 mm in total. All in all, June is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in June39July21° · Sea 18° · 8 h
In July, Knokke-Heist is mild: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 18.3 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain is frequent, with about 12 rainy days and 65 mm in total. All in all, July is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in July44August21° · Sea 19° · 7 h
In August, Knokke-Heist is warm: daytime highs average 21 °C, and nights cool down to about 16 °C. The sea averages 19.4 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 72 mm in total. All in all, August is a so-so month for a holiday in Knokke-Heist.
Knokke-Heist in August23September19° · Sea 18° · 6 h
In September, Knokke-Heist is mild: daytime highs average 19 °C, and nights cool down to about 13 °C. The sea averages 17.9 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 61 mm in total. All in all, September is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in September9October15° · Sea 15° · 4 h
In October, Knokke-Heist is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 14.7 °C – swimming is only for the hardy. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 14 rainy days and 76 mm in total. All in all, October is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in October5November10° · Sea 11° · 2 h
In November, Knokke-Heist is cool: daytime highs average 10 °C, and nights cool down to about 7 °C. The sea averages 11.3 °C – swimming is only for the hardy. The sun is scarce, with only about 2 hours a day. It rains often – on about 14 days, adding up to 74 mm. All in all, November is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in November5December7° · Sea 8° · 2 h
In December, Knokke-Heist is cold: daytime highs average 7 °C, and nights cool down to about 4 °C. The sea averages 8.1 °C – swimming is only for the hardy. The sun is scarce, with only about 2 hours a day. It rains often – on about 14 days, adding up to 73 mm. All in all, December is not an ideal month for a holiday in Knokke-Heist.
Knokke-Heist in DecemberKnokke-Heist compared
Put Knokke-Heist side by side with another destination.
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Knokke-Heist vs. Zeebrugge
In October the holiday weather in Knokke-Heist and Zeebrugge is about equally good (score 9 vs. 9). During the day it is about as warm in Zeebrugge as in Knokke-Heist. The sea is about equally warm.
| in October | Knokke-Heist | Zeebrugge |
|---|---|---|
| Holiday score | 9 | 9 |
| Daytime high | 15° | 15° |
| Sea | 15° | 15° |
| Sunshine | 4 h | 4 h |
| Rainy days | 14 | 14 |
| Best time | Jul – Aug | Jul – Aug |
Through the year
Belgium in October: the best places
In October, Knokke-Heist ranks 20 of 22 destinations in this country.
- Ypres15°53
- 2Mechelen15°53
- 3Dinant15°53
- 4Ghent15°52
- 5Tournai15°52
- 6Brussels15°52
- 7Mons15°51
- 8Leuven15°51
- 20Knokke-HeistThis page15°15°9
Planning a trip to Knokke-Heist
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Knokke-Heist 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.
Knokke-Heist has its best school-holiday weather during the summer holidays (score 42) and its weakest during the Christmas holidays (score 7).
- 21
Easter holidays
Mar – Apr
Poor
- 12 °C by day
- Sea 8 °C
- 6.1 h of sun a day
- 10 rainy days a month
- 24
May half-term
May – Jun
Poor
- 17 °C by day
- Sea 13 °C
- 7.4 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 42
Summer holidays
Jul – Aug
FairBest holidays
- 21 °C by day
- Sea 19 °C
- 7.2 h of sun a day
- 12 rainy days a month
Good for: Sightseeing & walks
- 9
October half-term
Oct
Poor
- 15 °C by day
- Sea 15 °C
- 3.9 h of sun a day
- 14 rainy days a month
Keep in mind: Frequent rain
- 7
Christmas holidays
Dec – Jan
Poor
- 7 °C by day
- Sea 7 °C
- 2.0 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- Short trip – train or car is often quicker
- Distance
- 260 km
- Time zone
- UTC+2
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Knokke-Heist
When is the best time to visit Knokke-Heist?
The best time to visit Knokke-Heist is from July to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Knokke-Heist?
The sea temperature in Knokke-Heist ranges from 5.8 °C in February to 19.4 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Knokke-Heist in October?
Only if you don't mind cold water: in October the sea averages just 14.7 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Knokke-Heist?
August is the warmest month, with average highs of 21 °C and nights around 16 °C. January is the coolest month at 6 °C.
When does it rain most in Knokke-Heist?
Rain is most frequent from October to January; the wettest month is October with 76 mm. The driest month is April with 44 mm.
How many hours of sunshine does Knokke-Heist get?
Knokke-Heist gets around 1,820 hours of sunshine a year. The sunniest month is June with 7.6 hours a day; in December there are 1.7 hours a day.
What time zone is Knokke-Heist in?
Knokke-Heist uses the time zone Europe/Brussels: UTC+1 in January and UTC+2 in July.
Which school holidays are best for Knokke-Heist?
Knokke-Heist has its best school-holiday weather during the summer holidays (score 42) and its weakest during the Christmas holidays (score 7). Holiday ratings (0–100): Easter holidays 21, May half-term 24, Summer holidays 42, October half-term 9, Christmas holidays 7.
Near Knokke-Heist
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Destinations whose weather through the year is closest to Knokke-Heist's – good alternatives.