Hillegom weather in January

In January, Hillegom sees average daytime highs of 6°C and overnight lows near 3°C, with 72 mm of precipitation across 13.6 wet days and about 8 hours of daylight. It is the 12th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 6°C through the month. The sky is clear or mostly clear about 15% of the time in January, and the air most often feels dry.

Daylight stretches from about 7 h 30 min at the start of January to 8 h 42 min by month's end. Set against the rest of the year, January is Hillegom's 10th-clearest and 1st-windiest month. For the whole year in context, see Hillegom's year-round climate.

Daytime high
12th warmest
Overnight low
2nd coldest
Precipitation
72 mm
13.6 wet days
Daylight
8 hours
8:52 AM – 4:50 PM
Cloud cover
73%
10th clearest
Wind
24 km/h
1st windiest
Solar energy
0.76 kWh/m²
Travel score
0.4
out of 10

Hillegom is village and municipality in South Holland, the Netherlands.

Density
1,366/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 6°C through the month.

A typical January day in Hillegom reaches about 6°C in the afternoon and slips back to 3°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 1°C and 10°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
163
263
363
463
563
663
763
863
963
1063
1163
1263
1363
1463
1563
1663
1763
1863
1963
2063
2163
2263
2363
2463
2563
2663
2763
2863
2963
3063
3163

How January really feels in Hillegom

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
wind chill below the day's low

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Hillegom weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7213.60.980.4
Feb / 5611.51.49.50.5
Mar / 5411.30.411.51.5
Apr12° / 4510.1013.63.0
May15° / 10°5910.4015.44.5
Jun18° / 13°6111016.45.5
Jul20° / 15°7712.40166.0
Aug20° / 15°9013.3014.55.9
Sep18° / 13°8713012.45.2
Oct14° / 10°9314010.33.6
Nov10° / 8315.30.38.51.9
Dec / 8414.60.87.50.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22674
32773
42773
52773
62872
72872
82872
92872
102872
112971
122971
132872
142872
152872
162872
172773
182773
192773
202674
212575
222476
232476
242476
252476
262476
272377
282476
292575
302575
312575

Chance of precipitation in January

Any precipitationSnow

Hillegom gets around 72 mm of rain and snow over 13.6 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 44% and peaks near 48% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1483
2472
3472
4472
5472
6462
7462
8462
9462
10462
11452
12452
13452
14452
15453
16443
17443
18443
19443
20433
21434
22434
23434
24424
25424
26424
27415
28415
29405
30405
31405

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 24 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 23 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
124breezy
224breezy
324breezy
424breezy
524breezy
624breezy
724breezy
824breezy
924breezy
1024breezy
1124breezy
1224breezy
1324breezy
1424breezy
1524breezy
1624breezy
1724breezy
1824breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3023breezy
3123breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 7 h 30 min at the start of January to 8 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over January. Sunrise moves from 8:59 AM to 8:35 AM, and sunset from 4:31 PM to 5:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.58:594:31
27.68:594:32
37.68:584:33
47.68:584:34
57.68:584:35
67.68:584:36
77.78:574:37
87.78:574:39
97.78:574:40
107.88:564:41
117.88:564:43
127.88:554:44
137.98:544:45
147.98:544:47
157.98:534:48
168.08:524:50
178.08:514:51
188.08:504:53
198.18:494:54
208.18:484:56
218.28:474:58
228.28:464:59
238.38:455:01
248.38:445:03
258.48:435:04
268.48:425:06
278.58:405:08
288.58:395:10
298.68:385:11
308.68:365:13
318.78:355:15

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.76 kWh/m².

For context, solar energy here swings from a low near 0.58 kWh/m² to a high of 5.68 kWh/m² in June across the year — January's 0.76 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.6Dim
20.6Dim
30.6Dim
40.6Dim
50.6Dim
60.6Dim
70.6Dim
80.6Dim
90.7Dim
100.7Dim
110.7Dim
120.7Dim
130.7Dim
140.7Dim
150.7Dim
160.7Dim
170.8Dim
180.8Dim
190.8Dim
200.8Dim
210.8Dim
220.8Dim
230.9Dim
240.9Dim
250.9Dim
260.9Dim
270.9Dim
281.0Dim
291.0Dim
301.0Dim
311.1Dim
Planning a trip in January

Is January a good time to visit Hillegom?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.4
Sightseeing
12th-best month of the year
0.0
Beach & pool
7th-best month of the year

January is a weaker month for outdoor sightseeing in Hillegom.

What to pack for Hillegom in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Hillegom sees daytime highs around 6°C and nights near 3°C. Pack a warm layer. Worth having: a heavy coat, rain gear and a windbreaker. About 14 days see rain.

a warm layera heavy coatrain geara windbreaker

Sea temperature near Hillegom in January

The nearest coast averages about 6°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) is warmest in August at about 19°C and coldest in February near 6°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan6Bracing
Feb6Bracing
Mar6Bracing
Apr8Bracing
May12Bracing
Jun15Bracing
Jul17Cool
Aug19Cool
Sep18Cool
Oct15Bracing
Nov11Bracing
Dec8Bracing

UV index in Hillegom in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hillegom peaks around June 23 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May5Moderate
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Hillegom?

Hillegom sits at 52.3°N, 4.6°E, 0 m above sea level, in The Netherlands. The nearest listed city is Lisse, 4.0 km away.

Topography around Hillegom

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hillegom.

Within 3 km, the terrain around Hillegom has only modest variations in elevation — a maximum elevation change of 26 m around an average of -1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 67 m; within 80 km, only modest variations in elevation — a maximum elevation change of 99 m.

The land around Hillegom is covered by cropland (41%), artificial surfaces (23%) and grassland (21%) within 3 km, grassland (27%) and water (25%) within 16 km, and water (38%) and grassland (27%) within 80 km.

3 km
26 m
16 km
67 m
80 km
99 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Lisse 4.0 km · Nieuw-Vennep 4.0 km · Heemstede 7.0 km · Hoofddorp 7.0 km · Sassenheim 8.0 km · Zandvoort 10 km · Haarlem 11 km · Noordwijk-Binnen 11 km

The Netherlands travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 84% of US
price level, 2025
GDP per capita
$73,684
2025
Happiness
7.2 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
4
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 624
Religion
none 54%Roman Catholic 20%Protestant 15%other 6%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Hillegom (52.2908°, 4.5833°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).