Belize Weather In April: Sunny And Warm

Belize in April is the perfect time for an island getaway. The weather is warm and sunny, with highs of around 85°F (29°C) and lows of 76°F (24°C). The coastal winds pick up, blowing at 12-16 knots, which makes for refreshing weather and calm seas behind the reef. The month also experiences the 'Iguana Rains', which are brief cooling showers that wash away excess humidity. With ideal diving and snorkelling conditions, it's no wonder that sun-seekers, divers and water sports lovers flock to Belize during April.

Average temperatures

April in Belize is characterised by rising temperatures, with occasional brief showers that help to cool things down. The average daily high temperature in Belize City in April is 87°F (30.7°C), rarely falling below 83°F (28°C) or exceeding 90°F (32°C). The average daily low temperature is 75°F (23.1°C), rarely falling below 68°F (20°C) or exceeding 81°F (27°C). The temperature on the coast is typically a little cooler, with an average high of 81°F (27°C).

The heat index, which takes into account both air temperature and relative humidity, is calculated to be 39°C (102.2°F) for most of April. This poses a risk of heat-related health issues, particularly for children.

The sea temperature in April is 28°C (82.4°F), which is considered very warm and enjoyable for swimming and diving.

In comparison to other months, April is the least humid month in Belize, with an average relative humidity of 77%.

Humidity and rainfall

April is the least humid month in Belize, with an average relative humidity of 77%. This is a decrease from the preceding months, making the warm days more comfortable. The month also sees a rapid increase in cloud cover, from 30% at the start of the month to 50% by the end.

The chance of rainfall in April remains constant at around 10%, making it the driest month of the year. Rain falls for an average of 3.9 days, with a total accumulation of 52mm (2.05 inches) of precipitation. The rainfall usually comes in the form of brief, cooling showers known as "Iguana Rains", which help to wash away excess humidity.

The drier conditions in April make it a popular month for outdoor activities such as wildlife spotting, tours, and water sports. The coastal breezes also help to offset the higher temperatures, making it a perfect time for an island getaway. The seas behind the reef are typically calm, making it a peak month for snorkelling, scuba diving, and fishing.

Sea temperature

The sea temperature in Belize in April is warm enough for a comfortable swim or bath. The average sea temperature in April 2023 was 82.8°F (28.3°C), with the highest and lowest sea temperatures that month reaching 83.8°F (28.9°C) and 81.9°F (27°C) respectively. The average sea water temperature in April 2024 was 84.2°F, with the highest and lowest sea temperatures during the month reaching 85.5°F and 82.9°F.

The average sea temperature in Belize City in April is 27.8°C, with the warmest sea in the city that month reaching 28.9°C and the coldest 26.3°C. The average sea temperature around Belize City in April is 27°C.

In April, the sea in Punta Gorda is the warmest in Belize, reaching 28.5°C, while the sea in Ambergris Caye is the coldest at 27.4°C. The average sea temperature in San Pedro in April is 27.6°C, with the highest and lowest temperatures reaching 28.3°C and 27°C respectively.

Daylight hours

Belize in April is the perfect time for an island getaway. The month offers plenty of warm, sunny weather, and the coastal breezes help to offset the higher temperatures. The length of the day in April is gradually increasing, with the average length of the day being 12 hours and 33 minutes. On the first day of the month, sunrise is at 05:46 and sunset is at 18:06, while on the last day, sunrise is at 05:26 and sunset is at 18:13. This means that the shortest day of the month has 12 hours and 19 minutes of daylight, while the longest day has 12 hours and 46 minutes.

April is a great month for outdoor activities, as the city doesn't get too hot. The average high temperature is 30.7°C (87.3°F), and the average low temperature is 23.1°C (73.6°F). The temperature on the coast averages a more comfortable high of 81°F (27°C). The coastal winds also pick up during April, blowing at around 12-16 knots, which makes for refreshing weather. The seas behind the reef are typically calm, making it a peak month for snorkelling, scuba diving, and fishing. The milder weather also allows for catamaran excursions to the outer atolls.

The month of April in Belize experiences rapidly increasing cloud cover, with the chance of an overcast or mostly cloudy day increasing from 30% at the start of the month to 50% by the end. Despite this, April has the most sunshine of the year, with an average of 8.5 hours of sunshine. It is also the least humid month, with an average relative humidity of 77%.

UV index

The UV index in Belize in April reaches a maximum of 12, which is considered an extreme threat to health from exposure to the sun's UV radiation. To put this into context, in the UK, the UV index rarely reaches 8, and in the Mediterranean area, indices of 9 and 10 are common.

To protect yourself from the sun in Belize in April, it is recommended that you take all the important safety measures, as unprotected skin may burn rapidly. The sun's UV radiation is at its most intense from 10 a.m. to 4 p.m., so it is best to avoid direct sun exposure during these hours. Select sunglasses that offer both UVA and UVB protection to limit adverse effects on the eyes. After outdoor activities or swimming, a broad-spectrum sunscreen with SPF 30+ should be applied generously and frequently. It is important to remember that the mirror effect of sand and water increases UV radiation strength.

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