AI-generatedHeemskerk at a glance
- Best time
- Jul – Aug
- Warmest month
- Jul · 23°
- Warmest sea
- Aug · 18.8°
- Sunshine a year
- 1,780 h
- Rain a year
- 863 mm
- Climate
- Maritime
- Time zone
- UTC+1 / UTC+2
- Elevation
- 5 m
Climate in Heemskerk
Heemskerk has a maritime climate with moderate summers and cool, often grey winters. July is the warmest month with average highs of 23 °C, while January is the coolest at 6 °C. With around 1,780 hours of sunshine a year, Heemskerk is moderately sunny; May is the sunniest month with 7.4 hours a day.
Holiday weather through the year
Best time to visit Heemskerk
The best time to visit Heemskerk is from July to August. The sea stays too cool for a classic beach holiday: even in August it only reaches 18.8 °C. For sightseeing, day trips and hiking, conditions are most comfortable from May to June. Rain is frequent from September to January; the wettest month is October with 95 mm.
Heemskerk through the seasons
How the weather changes over the seasons, with averages for each.
Heemskerk in spring
Mar – May
Poor
- 10–18 °C by day
- Sea 9 °C
- 6.2 h of sun a day
- 32 rainy days in all
Heemskerk in summer
Jun – Aug
Fair
- 20–23 °C by day
- Sea 17 °C
- 7.0 h of sun a day
- 39 rainy days in all
Heemskerk in autumn
Sep – Nov
Poor
- 10–19 °C by day
- Sea 15 °C
- 3.7 h of sun a day
- 43 rainy days in all
Heemskerk in winter
Dec – Feb
Poor
- 6–7 °C by day
- Sea 7 °C
- 2.5 h of sun a day
- 40 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
May – Jun
15–28 °C and not too much rain
Rainy months
Sep – Jan
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Heemskerk 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: July – August
Where to go in OctoberSea temperature in October
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 8°
- Midday, 13:00: about 14°
- Afternoon, 16:00: about 15°
- Evening, 20:00: about 12°
- Night, 23:00: about 10°
08:0518:49
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 07:44–08:52 · evening 18:02–19:10
- Blue hour
- Morning 07:30–07:44 · evening 19:10–19:24
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 Heemskerk compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 17° at the start of the month to 12° at the end. The sea cools from 16° to 13°. The days get 1.9 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 17° | 12° |
| Night-time low | 9° | 6° |
| Sea | 16° | 13° |
| Daylight | 11.7 h | 9.7 h |
What is the weather like in Heemskerk in October?
In October, Heemskerk is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sea averages 14.8 °C – swimming is only for the hardy. The sun is scarce, with only about 3.8 hours a day. It rains often – on about 15 days, adding up to 95 mm. All in all, October is not an ideal month for a holiday in Heemskerk.
More details for October
- Daylight
- 10 h 44 min08:05 – 18:49
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 28 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+2offset from UTC
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %13 %
- Few rainy daysweight 20 %24 %
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
Compare two months in Heemskerk
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 Heemskerk: score 45 against 7. In August, days are 8 °C warmer than in October. The sea is 4 °C warmer in August. August has 2 fewer rainy days. The sun shines 3 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Holiday weather score | 7 | 45better |
| Daytime high | 15° | 23° |
| Night-time low | 8° | 14° |
| Sea | 14.8° | 18.8° |
| Sunshine | 3.8 h | 6.6 hbetter |
| Rainy days | 15 | 13better |
| Rainfall | 95 mm | 91 mm |
| Muggy days | 0better | 1 |
Based on the climate averages 1996–2025.
Heemskerk month by month
The typical weather for every month at a glance.
7January6° · Sea 6° · 2.2 h
In January, Heemskerk is cold: daytime highs average 6 °C, and nights cool down to about 1 °C. The sea averages 6.3 °C – swimming is only for the hardy. The sun is scarce, with only about 2.2 hours a day. Rain is frequent, with about 13 rainy days and 69 mm in total. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, January is not an ideal month for a holiday in Heemskerk.
Heemskerk in January10February7° · Sea 6° · 3.3 h
In February, Heemskerk is cold: daytime highs average 7 °C, and nights cool down to about 1 °C. The sea averages 5.5 °C – swimming is only for the hardy. The sun is scarce, with only about 3.3 hours a day. Rain is frequent, with about 12 rainy days and 60 mm in total. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, February is not an ideal month for a holiday in Heemskerk.
Heemskerk in February16March10° · Sea 6° · 4.7 h
In March, Heemskerk is cool: daytime highs average 10 °C, and nights cool down to about 3 °C. The sea averages 6.3 °C – swimming is only for the hardy. Expect around 4.7 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 50 mm in total. All in all, March is not an ideal month for a holiday in Heemskerk.
Heemskerk in March23April14° · Sea 9° · 6.6 h
In April, Heemskerk is cool: daytime highs average 14 °C, and nights cool down to about 5 °C. The sea averages 8.5 °C – swimming is only for the hardy. The sun shines for around 6.6 hours a day. Rain is frequent, with about 10 rainy days and 47 mm in total. All in all, April is not an ideal month for a holiday in Heemskerk.
Heemskerk in April25May18° · Sea 12° · 7.4 h
In May, Heemskerk is mild: daytime highs average 18 °C, and nights cool down to about 9 °C. The sea averages 11.7 °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 60 mm in total. All in all, May is not an ideal month for a holiday in Heemskerk.
Heemskerk in May32June20° · Sea 15° · 7.2 h
In June, Heemskerk is mild: daytime highs average 20 °C, and nights cool down to about 11 °C. The sea averages 15.0 °C – swimming is only for the hardy. The sun shines for around 7.2 hours a day. Rain is frequent, with about 11 rainy days and 65 mm in total. All in all, June is not an ideal month for a holiday in Heemskerk.
Heemskerk in June42July23° · Sea 17° · 7.3 h
In July, Heemskerk is warm: daytime highs average 23 °C, and nights cool down to about 14 °C. The sea averages 17.4 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7.3 hours a day. It rains often – on about 14 days, adding up to 84 mm. All in all, July is a so-so month for a holiday in Heemskerk – and yet one of the best months here.
Heemskerk in July45August23° · Sea 19° · 6.6 h
In August, Heemskerk is warm: daytime highs average 23 °C, and nights cool down to about 14 °C. The sea averages 18.8 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 6.6 hours a day. Rain is frequent, with about 13 rainy days and 91 mm in total. All in all, August is a so-so month for a holiday in Heemskerk – and yet one of the best months here.
Heemskerk in August19September19° · Sea 18° · 5.1 h
In September, Heemskerk is mild: daytime highs average 19 °C, and nights cool down to about 11 °C. The sea averages 17.6 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.1 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 80 mm in total. All in all, September is not an ideal month for a holiday in Heemskerk.
Heemskerk in September7October15° · Sea 15° · 3.8 h
In October, Heemskerk is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sea averages 14.8 °C – swimming is only for the hardy. The sun is scarce, with only about 3.8 hours a day. It rains often – on about 15 days, adding up to 95 mm. All in all, October is not an ideal month for a holiday in Heemskerk.
Heemskerk in October3November10° · Sea 12° · 2.2 h
In November, Heemskerk is cool: daytime highs average 10 °C, and nights cool down to about 5 °C. The sea averages 11.5 °C – swimming is only for the hardy. The sun is scarce, with only about 2.2 hours a day. It rains often – on about 16 days, adding up to 84 mm. It is often windy: on a typical day the wind peaks at around 28 km/h. All in all, November is not an ideal month for a holiday in Heemskerk.
Heemskerk in November5December7° · Sea 8° · 1.9 h
In December, Heemskerk is cold: daytime highs average 7 °C, and nights cool down to about 2 °C. The sea averages 8.3 °C – swimming is only for the hardy. The sun is scarce, with only about 1.9 hours a day. It rains often – on about 15 days, adding up to 79 mm. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, December is not an ideal month for a holiday in Heemskerk.
Heemskerk in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Heemskerk
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°
CoolOctober: nights around 8°. A duvet at night and a jumper for the evening.
The coolest nights are in February (1°), the warmest in July (14°). 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 | 7 | 6° | 1° | 6.3° | 2.2 h | 13 | 69 |
| FebruaryFeb | 10 | 7° | 1° | 5.5° | 3.3 h | 12 | 60 |
| MarchMar | 16 | 10° | 3° | 6.3° | 4.7 h | 11 | 50 |
| AprilApr | 23 | 14° | 5° | 8.5° | 6.6 h | 10 | 47 |
| MayMay | 25 | 18° | 9° | 11.7° | 7.4 h | 11 | 60 |
| JuneJun | 32 | 20° | 11° | 15.0° | 7.2 h | 11 | 65 |
| JulyJul | 42 | 23° | 14° | 17.4° | 7.3 h | 14 | 84 |
| AugustAug | 45 | 23° | 14° | 18.8° | 6.6 h | 13 | 91 |
| SeptemberSep | 19 | 19° | 11° | 17.6° | 5.1 h | 12 | 80 |
| OctoberOct | 7 | 15° | 8° | 14.8° | 3.8 h | 15 | 95 |
| NovemberNov | 3 | 10° | 5° | 11.5° | 2.2 h | 16 | 84 |
| DecemberDec | 5 | 7° | 2° | 8.3° | 1.9 h | 15 | 79 |
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
52.51° N, 4.67° E · 5 m · Europe/Amsterdam
Sea temperature
Sea temperature in Heemskerk
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 13.9 – 15.8 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Heemskerk ranges from 5.5 °C in February to 18.8 °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 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 17.9 and 20.0 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 6.3° | 4.7° | 7.6° | cold |
| FebruaryFeb | 5.5° | 4.2° | 6.9° | cold |
| MarchMar | 6.3° | 4.4° | 7.6° | cold |
| AprilApr | 8.5° | 7.5° | 9.7° | cold |
| MayMay | 11.7° | 10.5° | 12.8° | cold |
| JuneJun | 15.0° | 14.0° | 15.8° | cold |
| JulyJul | 17.4° | 16.4° | 18.4° | fresh |
| AugustAug | 18.8° | 17.9° | 20.0° | fresh |
| SeptemberSep | 17.6° | 16.4° | 18.5° | fresh |
| OctoberOct | 14.8° | 13.9° | 15.8° | cold |
| NovemberNov | 11.5° | 10.4° | 12.5° | cold |
| DecemberDec | 8.3° | 7.3° | 9.1° | cold |
Sunshine
Sunshine hours in Heemskerk
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 3.8 of 10.7 hours of daylight in Heemskerk, 36 % of the daylight hours.
Sunshine hours: measured at the weather station 23 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in Heemskerk: 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, Heemskerk has about 15 rainy days with 95 mm of rain in total.
UV index
UV index in Heemskerk
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 75 min
- Fair skin
- about 95 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 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 & clouds
Wind and clouds in Heemskerk
How breezy and how cloudy Heemskerk 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 Heemskerk 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 70 % of the sky over Heemskerk: mostly cloudy, with about 3.8 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.
Planning a trip to Heemskerk
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Heemskerk 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.
Heemskerk has its best school-holiday weather during the summer holidays (score 44) and its weakest during the Christmas holidays (score 6).
- 21
Easter holidays
Mar – Apr
Poor
- 13 °C by day
- Sea 8 °C
- 6.0 h of sun a day
- 10 rainy days a month
- 26
May half-term
May – Jun
Poor
- 18 °C by day
- Sea 12 °C
- 7.4 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 44
Summer holidays
Jul – Aug
FairBest holidays
- 23 °C by day
- Sea 18 °C
- 6.8 h of sun a day
- 14 rainy days a month
- 7
October half-term
Oct
Poor
- 15 °C by day
- Sea 15 °C
- 3.8 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain
- 6
Christmas holidays
Dec – Jan
Poor
- 7 °C by day
- Sea 7 °C
- 2.1 h of sun a day
- 14 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
- 370 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.
Good to know: Netherlands
- Currency
- Euro (EUR)
- Language
- Dutch
- Sockets
- Type C, F · 230 V
- Traffic
- Drives on the right
- Dialling code
- +31
- Emergency number
- 112
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Heemskerk compared
Put Heemskerk side by side with another destination.
Heemskerk vs Zaandam
In October the holiday weather in Heemskerk and Zaandam is about equally good (score 7 vs 8). During the day it is about as warm in Zaandam as in Heemskerk.
| in October | Heemskerk | Zaandam |
|---|---|---|
| Holiday weather score | 7 | 8 |
| Daytime high | 15° | 15° |
| Sea | 15° | no sea nearby |
| Sunshine | 4 h | 4 h |
| Rainy days | 15 | 15 |
| Best time | Jul – Aug | May – Sep |
Through the year
Best places in the country
Netherlands in October: the best places
In October, Heemskerk ranks 25 among the 31 nearest destinations in this country.
- Naarden15°53
- 2Laren15°53
- 3Hilversum15°49
- 4Woerden15°49
- 5Utrecht15°49
- 6Soest15°49
- 7Gouda15°48
- 8Amsterdam15°47
- 25HeemskerkThis page15°15°7
Places nearby
Near Heemskerk
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Destinations whose weather through the year is closest to Heemskerk's – good alternatives.
Frequently asked questions about Heemskerk
When is the best time to visit Heemskerk?
The best time to visit Heemskerk 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 Heemskerk?
The sea temperature in Heemskerk ranges from 5.5 °C in February to 18.8 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Heemskerk in October?
Only if you don't mind cold water: in October the sea averages just 14.8 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Heemskerk?
July is the warmest month, with average highs of 23 °C and nights around 14 °C. January is the coolest month at 6 °C.
When does it rain most in Heemskerk?
Rain is frequent from September to January; the wettest month is October with 95 mm. The driest month is April with 47 mm.
How many hours of sunshine does Heemskerk get?
Heemskerk gets around 1,780 hours of sunshine a year. The sunniest month is May with 7.4 hours a day; in December there are 1.9 hours a day.
What time zone is Heemskerk in?
Heemskerk is on UTC+1 in January and UTC+2 in July.
Which school holidays are best for Heemskerk?
Heemskerk has its best school-holiday weather during the summer holidays (score 44) and its weakest during the Christmas holidays (score 6). Holiday ratings (0–100): Easter holidays 21, May half-term 26, summer holidays 44, October half-term 7, Christmas holidays 6.