Όταν έχει καύσωνα, λαχταράω κρύο νερό και λίγη σκιά.

Όταν means when or whenever. In this sentence it has a general, repeated meaning, so whenever is often the best way to understand it:

Όταν έχει καύσωνα = Whenever there is a heatwave / Whenever it’s extremely hot

So the sentence is not about one single moment, but about what usually happens in that situation.

Yes, έχει is the 3rd person singular of έχω, which normally means have. But in Greek, έχει is also often used impersonally to mean something like:

• there is
• it is
• conditions are

So:

έχει καύσωνα literally looks like it has heatwave, but naturally it means:

• there is a heatwave
• it’s scorching hot
• it’s extremely hot

This is a very common kind of Greek expression.

Greek usually does not use a dummy subject like English it in weather or impersonal expressions.

English says:

• It is hot
• It is raining

Greek often just uses the verb or an impersonal expression without a subject pronoun:

• βρέχει = it is raining
• έχει καύσωνα = there is a heatwave / it’s scorching hot

So the missing it is completely normal in Greek.

Because καύσωνα is the accusative singular form of the noun ο καύσωνας (heatwave).

The basic forms are:

• ο καύσωνας = nominative
• τον καύσωνα = accusative

In έχει καύσωνα, the noun functions like the object of έχει, so Greek uses the accusative.

This is similar to other Greek expressions with έχει, for example:

• έχει κόσμο = there are people / it’s crowded
• έχει κίνηση = there is traffic

Λαχταράω means more than simple want. It means something like:

• crave
• long for
• really desire

So it is stronger and more vivid than θέλω.

Compare:

• Θέλω κρύο νερό = I want cold water
• Λαχταράω κρύο νερό = I’m craving cold water

It gives the sentence a stronger feeling, which fits the idea of suffering in very hot weather.

Because Greek normally drops subject pronouns when they are not needed.

The ending -άω in λαχταράω already tells you the subject is I.

So:

• λαχταράω = I crave

Adding εγώ is possible, but it usually adds emphasis, like:

• Εγώ λαχταράω κρύο νερό = I’m the one who craves cold water

Without emphasis, Greek usually leaves the pronoun out.

Because adjectives in Greek must agree with the noun in gender, number, and case.

νερό is:

• neuter
• singular

So the adjective must also be neuter singular:

• κρύος = masculine
• κρύα = feminine
• κρύο = neuter

That is why Greek says:

κρύο νερό = cold water

Again, this is adjective agreement.

σκιά is a feminine singular noun, so λίγος must match it:

• λίγος = masculine
• λίγη = feminine
• λίγο = neuter

So:

λίγη σκιά = a little shade / some shade

Even though English often uses a little in a way that does not visibly change, Greek makes the word agree with the noun.

Because the sentence is talking about those things in an indefinite, general way, not about specific water or specific shade.

So Greek naturally says:

• κρύο νερό = cold water
• λίγη σκιά = some shade / a little shade

If you added articles, the meaning could become more specific depending on context:

• το κρύο νερό = the cold water
• τη λίγη σκιά = the little bit of shade

In this sentence, the speaker just means those things in general, so no article is the natural choice.

The sentence has two parts:

1. Όταν έχει καύσωνα = the when/whenever clause
2. λαχταράω κρύο νερό και λίγη σκιά = the main clause

Greek often puts the time or condition clause first, just like English can:

• When it’s extremely hot, I crave cold water and some shade.

The comma is used because the Όταν clause comes first.

Also, Greek word order is fairly flexible, but this order sounds very natural and clear. It sets up the situation first, then gives the result or reaction.

Yes. Both of them are things the speaker craves.

So the structure is:

• λαχταράω = I crave
• κρύο νερό = one thing craved
• και = and
• λίγη σκιά = another thing craved

In other words:

I crave [cold water] and [some shade].

Greek joins the two objects with και, just as English uses and.