Weather in Cartagena in April

Prime time. If you get to pick your dates, April is the one. Highs average 20.7 °C, lows 13.5 °C, and rain falls on 5 days — nothing in the month is working against you.

Cartagena barely has seasons. April scores 91 out of 100 against a best of 95 in May — a gap small enough that the month you choose matters far less here than the week you choose.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average April reaches 30 °C. Across the twenty years measured, the hottest April day reached 28.5 °C and the coldest night fell to 7.5 °C, and the wettest single day dropped 50 mm — roughly 161% of the month's rain in one day.

This is the volatile part. April rainfall has ranged from 3 mm to 94 mm across the twenty years measured — a 91 mm spread around an average of 31 mm. The average is real but almost no individual April looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 11.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 69%.

How April sits in the year

The month is on the way up: 2.1 °C warmer than March, and May adds another 3 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in April

13.1 hours of daylight, gaining 1.1 hours across the month. That is between Cartagena's extremes of 14.7 and 9.6 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 16.3 °C in April — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 25.7 °C in August and bottoms out at 14.7 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

April in Cartagena versus nearby

If Cartagena is one option among several, the nearby comparison is worth making. Murcia is close enough to be a coin toss — 3.3 °C warmer, the same number of rain days. Valencia is close enough to be a coin toss — 2.2 °C warmer, 2 days more rain.

So: April is effectively as good as it gets here — 4 points behind May, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Cartagena

See all twelve months in Cartagena, or where else to go in April.