Gammarids
High-priority research target with promising geography and water quality. Devonian sandstone geology with varied stream gradient.
- Sandstone
Rules at a glance
- Licence required
Water temperature for Brown Trout
Cool — slow4°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Likely species
Hatch timeline · tomorrowQuiet day
Low insect activity predicted today
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Evidence
Survey-backed · regionalModerate confidence
Backed by regional invertebrate surveys; no sampling on this exact reach yet.
Through the year
0–3 scale · November highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
2
2
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Brown Trout fly box
A broader mixed-water trout pack than Estonia. Rivers and lakes both matter, but trout shares the stage with other prized fish, especially salmon and sea trout.
Permits & access
Permit required — see local rules.
- General Latvian fishing card required
- Tributary-specific access, local restrictions, and exact salmonid rules should be checked locally rather than assumed from a flat Gauja template.
What's coming
Plan ahead
5-day outlook
Other water nearby · 4
Gallery · 2
File:River Amata wint LV (8332012471).jpg Terrain map
About this water
The full read · show the working · for Brown Trout · confidence 55%
How the 0 is built — score × weight = contribution
Temperature15 × 28%4.2
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity41 × 12%4.9
Limiting factor: Water temperature (4.3°C) is outside Brown Trout's preferred range (10–16°C)= 57
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Gauja (Valmiera County)proxy
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Warmer water — toward the 10–16 °C ideal band — would lift the temperature score.
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Sea trout check current local rules → check current local rules
- Trout check current local rules → check current local rules
Sea trout: Variable seasonal (2026)
Related guides
Booking & contacts
Amata
Clear tributary of the Gauja running through national park country with rapids, sandstone outcrops and forested banks.
Water temperature for Brown Trout
Cool — slow4°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Likely species
Hatch timeline · tomorrowQuiet day
Low insect activity predicted today
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Evidence
Survey-backed · regionalModerate confidence
Backed by regional invertebrate surveys; no sampling on this exact reach yet.
Through the year
0–3 scale · November highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
2
2
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Brown Trout fly box
A broader mixed-water trout pack than Estonia. Rivers and lakes both matter, but trout shares the stage with other prized fish, especially salmon and sea trout.
Permits & access
Permit required — see local rules.
- General Latvian fishing card required
- Tributary-specific access, local restrictions, and exact salmonid rules should be checked locally rather than assumed from a flat Gauja template.
What's coming
Plan ahead
5-day outlook
Other water nearby · 4
Gallery · 2
File:River Amata wint LV (8332012471).jpg Terrain map
About this water
High-priority research target with promising geography and water quality. Devonian sandstone geology with varied stream gradient.
- Sandstone
The full read · show the working · for Brown Trout · confidence 55%
How the 0 is built — score × weight = contribution
Temperature15 × 28%4.2
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity41 × 12%4.9
Limiting factor: Water temperature (4.3°C) is outside Brown Trout's preferred range (10–16°C)= 57
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Gauja (Valmiera County)proxy
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Warmer water — toward the 10–16 °C ideal band — would lift the temperature score.
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Sea trout check current local rules → check current local rules
- Trout check current local rules → check current local rules
Sea trout: Variable seasonal (2026)
Related guides
Booking & contacts
At a glance
Amata is a freestone river in Latvia / Vidzeme (Gauja National Park). Its recorded elevation is about 126 m above sea level and the catchment geology is sandstone. Our data lists brown trout, sea trout and salmon here. Core methods listed: Upstream nymph; Small streamer. Nearby waters in our listings include Vaive at 10 km, Līgatne tributary system at 12 km and Gauja NP tributary ring (Lenčupe, Lorupe, Skaļupe, Nurmižupīte) at 12 km.