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River

Simav Brook

321 km from source to mouth · Turkey.

TurkeyTurkeyFlows into Mustafakemalpaşa River

Follow the riverMonth by month

SourceMouth
The river and every tributary in its basin, drawn from RiverATLAS (CC BY 4.0).

In numbers

Length

321km

Average flow

79m³/s

Basin

22,400km²

Drop

817m

from 816 m to -1 m

Country

1

The journey

From source to mouth

321 km of river and 8 stops on the way: 4 towns and cities on its banks, dams, bridges and the tributaries that feed it.

816 m-1 m
Sourceat 816 m0 km
Kepsut5,542 people188 km
Macestus Bridge229 km
Susurluk24,816 people238 km
Lake Uluabat118 km²292 km
Mustafakemalpaşa Riverat -1 m321 km
0100200321 km
  1. 0 kmSourceat 816 m
  2. 9 kmSimav34,909 people
  3. 188 kmKepsut5,542 people
  4. 229 kmMacestus Bridge
  5. 238 kmSusurluk24,816 people
  6. 287 kmKaracabey44,256 people
  7. 292 kmLake Uluabat118 km²
  8. 296 kmKocaçay Rivertributary
  9. 318 kmDalyan Lake2.2 km²
  10. 321 kmMustafakemalpaşa Riverat -1 m

Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.

River in Balıkesir, northwestern Turkey

At the mouth it carries 79 m³/s on average: an Olympic pool every 32 seconds. It drops from 816 m to -1 m, 2.5 m per kilometre on average. Its basin covers 22,400 km², about the size of BZ. 3.0 million people live in it. Highest water: from January to February; lowest: from July to October. Its dams hold back little of its water (3.1% of a year's flow).

Read more on Wikipedia

Where to start

Simav Brook, month by month

Highest water: from January to February

Lowest water: from July to October. Best months to visit: from May to September.

540
5°97 mmJan
520
5°75 mmFeb
410
8°65 mmMar
300
12°54 mmApr
210
17°43 mmMay
130
21°26 mmJun
83
23°12 mmJul
58
23°12 mmAug
65
20°27 mmSep
120
15°52 mmOct
250
11°77 mmNov
440
7°110 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 58 m³/s in the lowest month to 540 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.

Plan the trip

Plan the trip: boat trips, a bed by the river, a car

Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.

The basin

Simav Brook: the basin in numbers

23,745 km² of land send their water to this river. This is what lives on it.

Lightly regulatedReservoirs can hold 3.1% of a year's flow.
  • 3.0millionpeople live in the basin
  • 126/km²people per km²
  • 640maverage altitude of the basin
  • 727mmof rain a year (basin average)
  • 12.0°Caverage air temperature
  • 1.2%covered by lakes
  • 0.2km³held in reservoirs

What covers the basin

  • 20% Forest
  • 27% Cropland
  • 9% Pasture
  • 4% Towns and cities

RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.

Along the river

Simav Brook: what you find on the way

  • 8DamsBoğazköy sulama göleti, Çaygören Barajı and 6 more
  • 2Weirs

From OpenStreetMap, within 2.0 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Simav Brook in our other atlases

What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.

  • 2lakes on its wayLakeyas
  • 1beach at the mouth or on the banksCoastya
  • 4mountains at the sourcePeakyas
  • 1island off the mouthIslandyas

Lakes and reservoirs (2)

Lakes it flows through, by Lakeyas

  1. Lake Uluabatkm 250118km²
  2. Dalyan Lakekm 2722.2km²

Lakeyas is coming soonOpen Lakeyas ↗

Beaches (1)

At the mouth (25 km) and on the banks, by Coastya

  1. Yeniköy Plaj11 km away24.4°C

Open Coastya ↗

Mountains at the source (4)

Within 15 km of the source, by Peakyas

  1. Ziyaret Tepe12 km away1,552m
  2. Darlıksivrisi Hill11 km away
  3. Büyükkır Hill9.4 km away
  4. Akdağ12 km away

Open Peakyas ↗

Islands off the mouth (1)

Within 30 km of the mouth, by Islandyas

  1. İmralı16 km away13km²

Islandyas is coming soonOpen Islandyas ↗

From space

The source and the mouth, seen from orbit

Simav Brook: satellite view of the source
The source14 km across
Simav Brook: satellite view of the mouth
The mouth21 km across

Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.

Tributaries

Where it flows, and what flows into it

Tributaries (2)

Also: Nilüfer Brook, Kocaçay River

Where these numbers come from

Name, length, placesWikidata (Q3181444) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata
FlowWaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0
Climate along the riverWorldClim (RiverATLAS), 1970–2000 · CC BY 4.0
Towns, bridges, damsWikidata · CC0; GeoNames · CC BY 4.0
Along the river© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Our other atlasesLakeyas, Coastya, Peakyas, Islandyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST

Every source and licence is on the data sources page.

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?

Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Coming soonVisit
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.You are here
canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit