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Sea State Explorer

Sea state at Kashagan: wave height exceedance by month

Kashagan lies in the Caspian Sea at 46.49° N, 50.14° E. Significant wave height there exceeds 2 m under 0.1% of the time across the months with data, less than a day a month on average. The roughest month is March, with a mean significant wave height of 0.4 m and seas above 2 m under 0.1% of the time; the calmest is May, with a mean of 0.3 m and under 0.1% of the time above 2 m. Waves above 4 m occur under 0.1% of the time. The source holds no wave statistics for January to February at this cell, which usually means sea ice; the annual figures on this page cover the remaining months only.

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Wave height by month

Mean significant wave height and the percentage of time the significant wave height is above each level, by calendar month. The last row combines the months weighted by their length in days.

MonthMean Hs (m)% above 1 m% above 1.5 m% above 2 m% above 2.5 m% above 3 m% above 4 m
Januaryno datano datano datano datano datano datano data
Februaryno datano datano datano datano datano datano data
March0.40.3%<0.1%<0.1%<0.1%<0.1%<0.1%
April0.40.1%<0.1%<0.1%<0.1%<0.1%<0.1%
May0.3<0.1%<0.1%<0.1%<0.1%<0.1%<0.1%
June0.3<0.1%<0.1%<0.1%<0.1%<0.1%<0.1%
July0.3<0.1%<0.1%<0.1%<0.1%<0.1%<0.1%
August0.3<0.1%<0.1%<0.1%<0.1%<0.1%<0.1%
September0.3<0.1%<0.1%<0.1%<0.1%<0.1%<0.1%
October0.40.1%<0.1%<0.1%<0.1%<0.1%<0.1%
November0.40.2%<0.1%<0.1%<0.1%<0.1%<0.1%
December0.40.3%<0.1%<0.1%<0.1%<0.1%<0.1%
Months with data0.30.1%<0.1%<0.1%<0.1%<0.1%<0.1%

Wind at 10 m across the year: typically 4.9 m/s (10 kn), top 10% above 8.3 m/s (16 kn). Monthly means run from 4.2 m/s in July to 5.5 m/s in December.

Weather windows: a typical month fits about 28 separate 24 h periods with significant wave height below 2 m, fewest in March (about 17) (over the 10 months with data). Periods do not overlap, so a 30 day month holds at most 30.

Nearest mapped asset to the data point: Kashagan, oil and gas field, about 31 m water depth, 11 km away. Source: Global Oil & Gas Extraction Tracker, Global Energy Monitor (CC BY 4.0). Positions are indicative unit centroids.

Data basis

Data basis: WAVERYS wave reanalysis (Copernicus Marine) + ERA5 wind, 1980-2023, 3 hourly. Data point 46.40° N, 50.20° E (0.2° grid), 11 km from the named position, 98,680 samples. Values are for the nearest grid cell and are not interpolated.

Generated using E.U. Copernicus Marine Service Information: WAVERYS global wave reanalysis [1980-2023], 3 hourly significant wave height, peak period and direction. Wind statistics from the ERA5 reanalysis (Copernicus C3S) on its 0.5 degree grid (wind, direction rose, diurnal cycle and ENSO split 1980-2024). Neither the European Commission nor ECMWF nor Mercator Ocean is responsible for any use of this information.

How the numbers are made: How it works. Other locations: all location pages.

Cite as

Thrust Maritime, Sea State Explorer, Kashagan, WAVERYS wave reanalysis (Copernicus Marine) + ERA5 wind 1980-2023, 3 hourly, page built 2026-10-23, accessed [date], https://seastate.thrustm.com/locations/kashagan.html

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