Monthly weather averages & travel planning

South America › 🇨🇴 Colombia › Cartagena
Updated: March 2026
April is a fair time to visit Cartagena (4/10). With 11 daily sunshine hours and only 15 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 4th sunniest of the year in Cartagena. April suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 15 potential rain days. May offers a similar profile at lower hotel rates if dates are flexible. Watch out for prolonged rain stretches: with 15 wet days, a fully outdoor itinerary is risky. Build in museum days and covered market visits as contingency. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.
Cartagena's April climate peaks at 32°C each afternoon before cooling to 25°C overnight. 11 daily sunshine hours and just 15 wet days mean the odds of a fine day are solidly in your favour. It is a reasonable time to visit, with a backup plan for the occasional shower.
32°C
90°F
Avg High
25°C
77°F
Avg Low
15 days
73 mm total
Rain Days
11h
per day avg
Sunshine
82%
Humid
Humidity
The 7°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. At 82% humidity, the 32°C daytime high feels 2-4°C warmer in practice: quick-dry fabrics and shade-seeking between noon and 3pm are the sensible response. UV index averages 6 this month, classed as moderate. Sunscreen is a sensible precaution for extended outdoor time, particularly at midday. Wind averages 21 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 90°F average high, 77°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Cartagena in April means dressing for 32°C days and 25°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 32°C daytime heat. Evening temperatures settle at 25°C, a modest 7°C drop that a light cardigan or denim jacket covers. For footwear, breathable walking sandals work for casual exploration, but closed-toe trainers are better for uneven surfaces in the historic centre. With 15 rain days expected, a compact travel umbrella is worth the bag space. A waterproof jacket is better than an umbrella if you plan full-day outdoor routes. At 82% average humidity, quick-dry synthetic or bamboo fabrics dry overnight and stay comfortable longer than cotton.
Local tip: Cartagena sees heavy rain periods where a compact travel umbrella can feel inadequate. A packable waterproof jacket offers better coverage for prolonged downpours and leaves both hands free for maps and cameras.
April has no major festivals or public holidays in Cartagena, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
Based on 32°C average highs and 15 rainy days
In April, Cartagena sits in the dry season corridor, as the ITCZ shifts away from the region and trade winds bring drier, more stable air. This produces reliably sunny days reaching 32°C, with lower humidity than the wet months. Overnight lows of 25°C offer a pleasant reprieve from the midday heat. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Cartagena in April
April ranks 4th sunniest of the year in Cartagena, with an average 11 daily sunshine hours. The driest months are January, February, and March. February is the hottest month (33°C avg high); October is the coolest (29°C). From here, temperatures fall 2°C into May. Compared to last month (March: 33°C high, 5 rain days), April is cooler and wetter. April sits in the middle of the annual sunshine ranking for Cartagena, offering a reasonable balance of good weather and manageable crowds.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 32°C | 24°C | 2 | 11h | View |
| February | 33°C | 25°C | 2 | 11h | View |
| March | 33°C | 25°C | 5 | 11h | View |
| April | 32°C | 25°C | 15 | 11h | View |
| May | 30°C | 25°C | 26 | 10h | View |
| June | 30°C | 25°C | 25 | 10h | View |
| July | 30°C | 25°C | 25 | 10h | View |
| August | 30°C | 25°C | 27 | 10h | View |
| September | 30°C | 25°C | 28 | 9h | View |
| October | 29°C | 24°C | 29 | 9h | View |
| November | 29°C | 24°C | 24 | 10h | View |
| December | 30°C | 24°C | 10 | 11h | View |
January
2 rain days, 11h sun
February
2 rain days, 11h sun
March
5 rain days, 11h sun
April
15 rain days, 11h sun
May
26 rain days, 10h sun
June
25 rain days, 10h sun
July
25 rain days, 10h sun
August
27 rain days, 10h sun
September
28 rain days, 9h sun
October
29 rain days, 9h sun
November
24 rain days, 10h sun
December
10 rain days, 11h sun
Cities within 500 km with comparable weather conditions
Data Sources for Cartagena
Climate normals represent 30-year averages (1991-2020). Individual years may vary.