The sea today and over the next 5 days
Forecast of the physical preconditions for algal blooms and
mucilage along the Calabrian coast, updated several times a day from the satellite
and model data of the Copernicus Marine Service.
Data: Mon 21/09/2026 · 20:01
Horizon: up to 5 days
Index levels:
Low
Moderate
High
Very high
Preconditions map — today
Each dot is a stretch of sea, split in half: the
left half shows today's bloom preconditions, the
right half today's mucilage ones. Click a
dot for today's and tomorrow's values.
Detail by zone
Forecast trend of the two indices and daily traffic light.
Algal bloom
Mon
21/09
78
Tue
22/09
87
Wed
23/09
62
Thu
24/09
58
Fri
25/09
58
Mucilage
Mon
21/09
56
Tue
22/09
62
Wed
23/09
42
Thu
24/09
37
Fri
25/09
36
Algal bloom
Mon
21/09
70
Tue
22/09
74
Wed
23/09
63
Thu
24/09
63
Fri
25/09
75
Mucilage
Mon
21/09
51
Tue
22/09
52
Wed
23/09
42
Thu
24/09
41
Fri
25/09
48
Algal bloom
Mon
21/09
38
Tue
22/09
39
Wed
23/09
16
Thu
24/09
2
Fri
25/09
0
Mucilage
Mon
21/09
16
Tue
22/09
16
Wed
23/09
3
Thu
24/09
0
Fri
25/09
0
Algal bloom
Mon
21/09
33
Tue
22/09
29
Wed
23/09
2
Thu
24/09
0
Fri
25/09
6
Mucilage
Mon
21/09
11
Tue
22/09
9
Wed
23/09
0
Thu
24/09
0
Fri
25/09
0
Algal bloom
Mon
21/09
20
Tue
22/09
9
Wed
23/09
1
Thu
24/09
2
Fri
25/09
3
Mucilage
Mon
21/09
7
Tue
22/09
3
Wed
23/09
0
Thu
24/09
0
Fri
25/09
0
Focus Amantea-Lamezia
81
58
Algal bloom
Mon
21/09
73
Tue
22/09
81
Wed
23/09
45
Thu
24/09
56
Fri
25/09
55
Mucilage
Mon
21/09
53
Tue
22/09
58
Wed
23/09
30
Thu
24/09
34
Fri
25/09
32
Each number is a 0–100 index computed from the physical
preconditions of a bloom: sea temperature, stratification (calm sea)
and marine heatwaves. The bloom measures how favourable
these conditions are; the mucilage combines the bloom with
the prolonged stagnation of the sea. Details on the How it works page.
How to read the two indices
Both indices range from 0 to 100 and share the same
threshold scale: the higher the value, the more favourable
the forecast conditions, for both bloom and mucilage.