Formal:
* Vandag is 'n mooi dag. (This is the most literal translation and is quite formal.)
Informal:
* Dit is 'n lekker dag vandag. (This is a more common and informal way to say it, emphasizing the pleasantness of the day.)
* Wat 'n lekker dag! (This is a very informal and enthusiastic way to say it, literally meaning "What a nice day!")
* Die weer is lekker vandag. (This focuses on the weather, saying "The weather is nice today.")
You can also use different adjectives to describe the day, such as:
* Pragtig (beautiful)
* Sonnig (sunny)
* Warm (warm)
* Koud (cold)
* Fris (fresh)
So, you could say:
* Vandag is 'n pragtige dag. (Today is a beautiful day.)
* Dit is 'n sonnige dag vandag. (It's a sunny day today.)
* Die weer is warm vandag. (The weather is warm today.)
Remember to adjust the level of formality based on the context and your relationship with the person you are speaking to.