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Sut mae'r tywydd? What's the weather like?
Mae hi'n braf It's fine.
Mae hi'n heulog It's sunny.
glaw rain
bwrw glaw raining
Mae hi'n bwrw glaw. It's raining.
eira snow
bwrw eira snowing
Mae hi'n bwrw eira. It's snowing.
cwmwl cloud
cymylog cloudy
Mae hi'n gymylog. It's cloudy.
storm storm
stormus stormy
Mae hi'n stormus. It's stormy.
sych dry
Mae hi'n sych. It's dry.
gwlyb wet
Mae hi'n wlyb. It's wet.
oer cold
Mae hi'n oer. It's cold.
twym (S) warm
Mae hi'n dwym. It's warm.
poeth hot
Mae hi'n boeth. It's hot.
cenllysg (N) hail (N)
cesair (S) hail (S)
Mae hi'n bwrw cesair. It's hail stoning.
gwynt wind
gwyntog windy
Mae hi'n wyntog. It's windy.
cynnes (N) warm
Roedd hi'n... It was...
Ddoe, roedd hi'n... Yesterday, it was...
Bydd hi'n... It will be...
Yfory, bydd hi'n... Tomorrow it will be...
Sut roedd y tywydd ddoe? What was the weather like yesterday?
Sut bydd y tywydd yfory? What will the weather be like tomorrow?