Sea View — Nam Van Lake

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

Ocean Viewing Index

Updated · Sep 8, 2026 18:01

Reference time: local noon · 12:36 (Asia/Macau)

Estimated
69
Good

Good conditions. Worth a visit.

Sub-Index Breakdown

Six dimensions feed the overall Ocean Viewing Index.

  • Sea Color
    Clear blue-green · hue
    70
  • Clarity
    Turbid · NTU
    51.3
  • Visibility
    Under 8 m · m
    41.3
  • Sea State
    Calm, glassy (0-1) · Beaufort
    100
  • Lighting
    Golden hour, optimal · lux
    100
  • Water Quality
    index
    —

Sea Color

Observed Sep 8, 2026

Climatology
Blue-Green
#0284c7
Turbidity
6.10 NTU
Chlorophyll
1.31 mg/m³

FU=6, hue=150.5°, Kd490=0.279

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
#0d9488

Cloudy/hazy conditions darken the apparent color

Noon12:36
Natural sea color
#0284c7

Cloudy/hazy conditions darken the apparent color

Afternoon15:00
Deep blue
#1e5fa8

Cloudy/hazy conditions darken the apparent color

Dusk18:00
Deep indigo (low light)
#1e5fa8

Cloudy/hazy conditions darken the apparent color

Local noon · 12:36 (Asia/Macau)

7-Day OVI Trend

Forecast ocean viewing conditions for the coming week.

Best on Fri: Viewing conditions are Good; aim for the golden hour just after sunrise or before sunset. Great for snorkeling and photography.

7-Day Sub-Index Forecast

Six dimensions of ocean viewing quality over the coming week.

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