Sea View — Zandvoort Beach

Today's Ocean Viewing Index and the six sub-indices behind it.

Ocean Viewing Index

Updated · Oct 23, 2026 22:35

Reference time: local noon · 13:26 (Europe/Amsterdam)

Estimated
61
Fair

Fair conditions. Sea color may appear muted.

Sub-Index Breakdown

Six dimensions feed the overall Ocean Viewing Index.

  • Sea Color
    Muted color · hue
    44.3
  • Clarity
    Turbid · NTU
    2.4
  • Visibility
    15+ m horizontal · m
    100
  • Sea State
    Calm, glassy (0-1) · Beaufort
    90.6
  • Lighting
    Golden hour, optimal · lux
    86.5
  • Water Quality
    index
    —

Sea Color

Observed Oct 23, 2026

Climatology
Green-Blue
#16a34a
Turbidity
2.20 NTU
Chlorophyll
3.64 mg/m³

FU=10, hue=83.3°, Kd490=0.774

Sea color through the day

The FU index represents the inherent color around local noon (closest to the true sea color); perceived color varies slightly by time of day with light and weather.

Morning08:00
Soft green-blue
#65a30d

Cloudy/hazy conditions darken the apparent color

Noon13:26
Natural sea color
#16a34a

Cloudy/hazy conditions darken the apparent color

Afternoon15:00
Deep blue
#0d9488

Cloudy/hazy conditions darken the apparent color

Dusk18:00
Deep indigo (low light)
#0d9488

Cloudy/hazy conditions darken the apparent color

Local noon · 13:26 (Europe/Amsterdam)

7-Day OVI Trend

Forecast ocean viewing conditions for the coming week.

Best today: Viewing conditions are Fair; aim for the golden hour just after sunrise or before sunset. Good for a beach stroll and sea viewing.

7-Day Sub-Index Forecast

Six dimensions of ocean viewing quality over the coming week.

Sea Color
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Sea color (Forel-Ule scale) — empty block means no verified data.