In Icelandic, three of the four seasons are neuter nouns, while one is masculine. When talking about the seasons in a general sense, Icelandic typically attaches the definite article (the suffix meaning "the") to the end of the word.
Spring and Summer
Both vor (spring) and sumar (summer) are neuter nouns. With the definite article attached, they become vorið and sumarið.
| The spring is very beautiful and bright. | Vorið er mjög fallegt og bjart. |
| The summer always comes after the spring. | Sumarið kemur alltaf eftir vorið. |
Autumn
haust (autumn) is also a neuter noun, becoming haustið with the definite article. You will often want to link weather conditions to a season using the phrase af því að (because).
| The autumn begins soon. | Haustið byrjar bráðum. |
| I find the autumn sometimes boring because it rains a lot. | Mér finnst haustið stundum leiðinlegt af því að það rignir mikið. |
Winter
vetur (winter) breaks the pattern—it is a masculine noun. With the definite article, it becomes veturinn. Because it is masculine, any adjectives describing it must also take the masculine form, such as dimmur (dark) instead of the neuter dimmt, or kaldur (cold) instead of kalt.
| The winter is dark. | Veturinn er dimmur. |
| The winter is sometimes cold but the wind is worst. | Veturinn er stundum kaldur en vindurinn er verstur. |
When preparing for the cold weather, you can use the preposition fyrir (for) followed by the season to explain what your clothing or plans are for.
| I have not bought a parka for the winter. | Ég er ekki búinn að kaupa úlpu fyrir veturinn. |