Hun er sur i dag.

This is the normal Norwegian word order for a simple statement:

• Hun = subject
• er = verb
• sur = adjective/predicative
• i dag = time expression

So the pattern is basically:

subject + verb + adjective + time

This is very similar to English She is grumpy today.

Norwegian usually keeps this straightforward order in main clauses unless you move another element to the front for emphasis. For example, you can also say I dag er hun sur, and then the verb still stays in second position.

Er is the present tense of å være, which means to be.

So:

• jeg er = I am
• du er = you are
• hun er = she is
• vi er = we are

Unlike English, Norwegian does not change the present tense form of to be depending on the subject. It stays er for all persons.

Sur usually means something like:

• grumpy
• sulky
• cross
• in a bad mood
• sometimes angry, depending on context

It often suggests that someone is displeased, irritable, or not cheerful.

A useful thing to know is that sur is not always a strong, explosive kind of anger. It can also mean someone is just moody or sour in attitude.

This is a very common question.

• sur often means grumpy, sulky, or in a bad mood
• sint usually means more directly angry

So:

• Hun er sur i dag = she is grumpy / in a bad mood today
• Hun er sint = she is angry

In real life, there can be overlap, but sint often sounds more clearly like actual anger, while sur can be milder or more sulky.

Here sur is used after er, so it is a predicative adjective. In that position, adjectives often appear in their basic form.

In this sentence:

• Hun is singular
• the adjective after er is simply sur

So Hun er sur is correct.

You may see other forms of the adjective in other contexts:

• et surt eple = a sour apple
• sure folk = grumpy people

But after er, with hun, the form sur is the normal one.

I dag means today.

It is a time expression telling you when she is grumpy. It works much like English today.

In Norwegian, time expressions often come later in the sentence:

• Hun er sur i dag

But they can also be placed first:

• I dag er hun sur

Both are correct. The second version puts more focus on today.

Yes. You can say:

I dag er hun sur.

This is very natural Norwegian.

But when you put i dag first, Norwegian follows the verb-second rule in main clauses. That means the finite verb must come right after the first element:

• I dag er hun sur
• not I dag hun er sur

This is an important pattern in Norwegian sentence structure.

In standard written Bokmål, hun is the normal form for she.

However, you may also come across ho, especially in:

• Nynorsk
• dialects
• some informal speech

So:

• Hun er sur i dag = standard Bokmål
• Ho er sur i dag = common in Nynorsk and many dialects

If you are learning standard Bokmål, hun is the form to use.

A simple approximate pronunciation for an English speaker is:

hoon ehr suhr ee dahg

A few helpful notes:

• Hun has a vowel sound that may be a bit different from English oo
• er is often pronounced quite lightly in natural speech
• sur has a long vowel
• dag in i dag is pronounced with a long a-like vowel, not like English dag

In careful speech, the rhythm is smooth and fairly even: Hun er sur i dag.

Yes, absolutely. In fact, with i dag, it very naturally sounds temporary.

• Hun er sur i dag suggests she is grumpy today
• it does not mean she is always like that

The phrase i dag makes it clear that this is about her mood or state on this particular day.

Without i dag, Hun er sur could still describe a current mood, but depending on context it might also sound more general.

Yes. Then you get:

Hun er sur.

That simply means She is grumpy / cross / sour.

Without i dag, the sentence is more open-ended. It could describe:

• how she is right now
• her general mood in a situation
• or, in some contexts, a more lasting impression

Adding i dag makes it more specific and temporary.