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Rock Island Lake

MU 3-39, Thompson-Nicola
51.5408° N, 120.3297° W

Map of Rock Island Lake: the shoreline from the BC Freshwater Atlas and the roads round it from the BC Digital Road Atlas.120°22′W120°21.5′W120°21′W120°20.5′W120°20′W120°19.5′W120°19′W51°32.2′N51°32.5′N51°32.8′N51°33′N51°33.2′NRock Island Lake0500 mNMap of Rock Island Lake: the shoreline from the BC Freshwater Atlas and the roads round it from the BC Digital Road Atlas.120°20′W120°19′W51°32.5′N51°33′N0500 mN
WaterRoadRough surface roadShoreline from the BC Freshwater Atlas, roads from the BC Digital Road Atlas, under the Open Government Licence, British Columbia. The lake's depth is not drawn on this map.
Surface area
64.5ha
Elevation
1,271m

Open Rock Island Lake in the appThe 7-day forecast, max depth and wildfire smoke check, on the lake's own coordinate.

Trophy fish at Rock Island Lake

Rock Island Lake is known for trophy Rainbow trout to 14.5 lb.

  • Rainbow trout to 14.5 lb

Trophy sizes this lake is known for, not a typical catch. They are historical records from our own big fish list, with no date on file, not recent catches.

Rock Island Lake at a glance

Region
Thompson-Nicola
Management unit
MU 3-39
Species
Rainbow Trout, Westslope Cutthroat Trout, Bull Trout
Lake size
Medium Lake (50 - 500 ha)
Ice fishing
Open to ice fishing, confirmed
Coordinates
51.5408, -120.3297

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Gear for rainbow trout

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Fish on record at Rock Island Lake

Species in the Province's fish observation records
SpeciesFirst recordedLast recordedRecords
Rainbow Trout197720133

A year is when the Province last recorded the fish here, not a statement that it is caught today.

How to fish Rock Island Lake

Best times of year at Rock Island Lake

  • May - June
  • September - October

Rock Island Lake fishing regulations

We have no lake specific regulations on file for Rock Island Lake yet.

Getting to Rock Island Lake

Coordinates: 51.5408, -120.3297

Camping and rec sites at Rock Island Lake

  • Rock Island Lake
    No campsite count on file (BC Recreation Sites and Trails)

The ice year at Rock Island Lake, modelled

Modelled from air temperature, not an ice report. It says nothing about whether ice will hold you.

In the model Rock Island Lake froze in 65 of the 65 winters since 1960. Freeze-up falls most years between 24 October and 3 November, and ice-off between 13 May and 31 May. The median winter freezes on 29 October and opens on 22 May.

Modelled ice season at Rock Island Lake: freeze-up most winters between 24 October and 3 November, ice-off between 13 May and 31 May.OctNovDecJanFebMarAprMayJunFreeze-upIce-offabout 202 days in the median winter

the middle half of modelled winters the median ice cover in the median winter

Winter 2024-25 in the model: frozen from 28 October 2024 to 12 May 2025, 196 days.

Rock Island Lake is open to ice fishing under the regulations on file.

Whether a lake is open to ice fishing says nothing about whether its ice will hold you. Ice conditions vary year to year and across a single lake. Check locally before going out, every time.

Rock Island Lake climate, 1960 to 2025

Averaged over a year, the air above Rock Island Lake is 0.8 C warmer than it was in the 1960s. That is 66 years of daily readings, not a forecast.

  • +0.8 Csince the 1960s
  • 5.3 Caverage year now
  • 4.5 Caverage year then
  • -7 daysbelow freezing, change
Average year at Rock Island Lakedegrees C, yearly mean
2 C5 C8 C1960198020002020

each yearthe trend across 1960 to 2025

Days below freezingdays a year averaging under 0 C
711131551960198020002020

each yearthe trend across 1960 to 2025

This week at Rock Island Lake

The forecast on this lake's own coordinate, refreshed through the day. The app reads these seven days for fishing and scores each one.

DaySkyHigh / lowWindRainPressure
Tue 20 OctClear sky8° / -1°11 km/h, gusts 22drySteady
Wed 21 OctOvercast10° / 0°7 km/h, gusts 20dryFalling (-7.7 hPa)
Thu 22 OctOvercast9° / 0°18 km/h, gusts 42drySteady
Fri 23 OctOvercast5° / -2°15 km/h, gusts 32dryRising (+13.5 hPa)
Sat 24 OctOvercast3° / -2°7 km/h, gusts 14drySteady
Sun 25 OctOvercast6° / -3°8 km/h, gusts 18dryRising (+3.9 hPa)
Mon 26 OctOvercast4° / -1°4 km/h, gusts 15drySteady

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Trout lakes near Rock Island Lake

All 342 lakes in the Thompson-Nicola, with today's conditions on each.

Reading the water