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Weather and Climate Data

 

 

WEATHER FORECAST FOR MULTIDAY BOATS

For the sea areas in between 20N - 10S and 60E-100E

(Issued at 07.00 a.m. on 23 January 2021, for next three days)

 

Sea areas around the island

Showers will occur at a few places over sea areas extending from Kalutara to Matara via Galle. Mainly fair weather will prevail in the other sea areas around the island.

                                                                                                                                                                                            

Winds will be North-easterly in the sea areas around the island. Wind speed will be (20-30) kmph and wind speed can increase up to 40 kmph at times in the sea areas extending from Colombo to Kankasanthurai via Puttalam.

The sea area extending from Colombo to Kankasanthurai via Puttalam can be fairly rough at times. Other sea areas around the island will be moderate.

 

 

 

Bay of Bengal

 

Weather:

00-05N, 80E-90E        :Showers or thundershowers at several places.

00-06N, 90E-100E      :Showers or thundershowers at a few places.

Other sea areas            : Mainly fair weather.

 

Winds:

01N-11N, 80E-90E    : North-easterly/ (30-40) kmph.

00-10N, 90E-95E      : North-easterly to North-westerly/ (20-30) kmph.

10N-20N, 80E-95E    : Clockwise/ (15-25) kmph.

Other sea areas            : North-westerly or Variable/ (10-20) kmph.

Sea State

01N-11N, 80E-90E     : Modeate to fairly rough.

 

00-10N, 90E-95E        : Slight to moderate.

 

Other sea areas            : Slight.

 

 

Arabian Sea

 

Weather:

00-05N, 74E-80E        : Showers or thundershowers at several places.

00-06N, 60E-70E        : Showers or thundershowers at a few places.

Other sea areas            : Mainly fair weather.

 

Winds:

02N-20N, 60E-70E     : Northerly to North-easterly / (30-40) kmph, gusting up to 50kmph.

 

00-10N, 70E-80E        : North-easterly to Easterly / (25-35) kmph.

 

Other sea areas            : Northerly to North-easterly / (10-20) kmph.

 

Sea State:

02N-20N, 60E-70E     : Moderate to fairly rough, rough at times.

 

00-10N, 70E-80E        : Slight to moderate.

 

Other sea areas            : Slight.

 

 

South Indian sea area

 

Weather:

00 -10S, 90E-100E     : Showers or thundershowers at several places.

05S -10S, 70E-80E     : Showers or thundershowers at several places.

Other sea areas            : Showers or thundershowers at a few places.

Winds:

00-10S, 90E-100E      : North-westerly / (40-50) kmph; gusting up to 60 kmph.

00-08S, 80E-90E        : Westerly to North-westerly / (30-40) kmph; gusting up to 50 kmph.

02S-10S, 70E-80E      : Westerly / (25-35) kmph.

00-08S, 60E-70E        : North-westerly / (15-25) kmph.

Other sea areas            : Variable / (10-20) kmph.

Sea State:

00-10S, 90E-100E      : Fairly rough to rough, very rough at times.

00-08S, 80E-90E        : Moderate to fairly rough, rough at times.

02S-10S, 70E-80E      : Moderate.

00-08S, 60E-70E        : Slight to moderate.

Other sea areas            : Slight.

 

**Temporary strong gusty winds and rough seas can be expected during thundershowers.