WeatherEU
Official Meteorological TelemetryMeteoAlarm Advisory

MeteoAlarm Advisory: Heavy Precipitation Ahead

Significant moisture corridor approaching. Probability of localized street runoff and reduced visibility on transit corridors.

Netherlands•Randstad & Coastal•Elev: 303m

Haarlem Colli

lunedì 28 settembre 2026

19°C
OvercastFeels like 20°
H: 20°•L: 16°•Rain: 39%
Meteorological Synthesis

Overcast with highs near 20°C.

Precipitation expected over the coming days with variable skies.

Wind
11.9 km/h
Humidity
83%
UV Index
1.65 / 11
Pressure
1020 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
17°
20%
11k
09:00
18°
17%
12k
10:00
19°
14%
13k
11:00
19°
12%
12k
12:00
20°
11%
9k
13:00
20°
12%
11k
14:00
18°
19%
8k
15:00
18°
29%
8k
16:00
17°
35%
12k
17:00
17°
33%
10k
18:00
17°
28%
9k
19:00
16°
25%
9k
20:00
16°
28%
12k
21:00
16°
34%
13k
22:00
16°
39%
15k
23:00
16°
44%
14k
00:00
16°
49%
15k
01:00
16°
49%
13k
02:00
16°
41%
11k
03:00
16°
29%
13k
04:00
16°
18%
11k
05:00
16°
10%
12k
06:00
16°
4%
15k
07:00
16°
0%
14k
08:00

Air Quality (AQI)

Fair
37EAQI Index

Sensitive individuals should limit prolonged outdoor exertion.

PM2.5
10 µg/m³
PM10
16.4 µg/m³
NO₂
23.1 µg/m³

UV Index

Max 3.3
1.65/ 11 (Moderate)

Low to moderate exposure. Sunglasses recommended during peak afternoon hours.

0 (Low)6 (High)11+ (Extreme)

Wind

10m AGL
11.9km/h

Gusts up to 22.3 km/h.

Direction: 268°
Gentle Breeze

Solar Cycle

Daylight: 12h
Sunrise
07:37
Sunset
19:26
Twilight and solar zenith calculated based on WGS84 geographic coordinate telemetry.

Pressure

Stable High
1020hPa (MSL)
Surface Pressure1020 hPa
Cloud Cover100%

Humidity & Moisture

RH Ratio
83%
Current Rain0 mm
24h Rain Accumulation0.7 mm

14-Day Detailed Outlook

14-Day Deterministic Model
Today
28 set
39%
16°
20°
Tomorrow
29 set
49%
16°
26°
Wed
30 set
80%
18°
25°
Thu
1 ott
83%
14°
20°
Fri
2 ott
-
10°
20°
Sat
3 ott
14%
10°
20°
Sun
4 ott
22%
12°
17°
Mon
5 ott
12%
7°
17°
Tue
6 ott
14%
7°
18°
Wed
7 ott
18%
7°
16°
Thu
8 ott
16%
9°
15°
Fri
9 ott
24%
7°
15°
Sat
10 ott
25%
9°
14°
Sun
11 ott
29%
7°
13°

Live Weather Radar — Pan-European Doppler Radar

Past -60m•Now•+120m Outlook

Nearby Cities & Stations in Netherlands

Regional Grid

Live Ground-Truth Observation Feed

Peer-verified reports logged by spotters and automated PWS stations across Europe

Real-time Ingestion
Log Local Ground ConditionStep 1 of 2: Select condition
Haarlem Colli
Ground Temp:°C

Observations undergo peer verification by regional spotters and enrich city telemetry.

Filter:
6 reports
S
Stefan MüllerAlpine Master SpotterAlps
Garmisch-Partenkirchen, Germany•Recent
15°C•Partly Cloudy

“Crisp morning air around Zugspitze valley station, golden sun breaking through light morning mountain mist. Zero wind, visibility > 35km.”

Ground-Truth Telemetry
C
Chloé DuboisCoastal Maritime SpotterAtlantic
Le Havre, France•Recent
14°C•Rain / Showers

“Fresh Atlantic westerly gale picking up, moderate sea swell (2.2m). Light intermittent drizzle across the harbor piers.”

Ground-Truth Telemetry
D
Dr. Alessandro RivaHigh Alpine ObserverAlps
Cortina d’Ampezzo, Italy•Recent
9°C•Clear Sky

“First seasonal frost dusting on peaks above 2,600m. Crisp alpine sky with cirrus uncinus approaching from the west.”

Ground-Truth Telemetry
M
Matteo RossiMediterranean SpotterMediterranean
Rome, Italy•Recent
22°C•Clear Sky

“Warm evening breeze across Piazza Navona. Pleasant 22°C with dry conditions and comfortable humidity around 48%.”

Ground-Truth Telemetry
E
Emre KayaBosporus Weather StationMediterranean
Istanbul, Turkey•Recent
21°C•Partly Cloudy

“Bosphorus breeze is cool and refreshing from the Black Sea. Crystal blue sky with passing white cumulus clouds at 1,200m.”

Ground-Truth Telemetry
A
Astrid LindholmFjord Atmospheric LabNordic
Bergen, Norway•Recent
11°C•Dense Fog

“Low scud clouds drifting over Mount Fløyen. Typical Atlantic marine layer with fine mist and 98% relative humidity.”

Ground-Truth Telemetry

Guide Consigliate & Articoli Correlati • Haarlem Colli

Guide approfondite di oltre 1.500 parole dedicate al patrimonio culinario, monumenti UNESCO e clima locale in tutti i 44 paesi europei.

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