Climate and monthly weather forecast
Deerfield Beach, FL

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The calm sea and white sand of the famous Deerfield Beach in Florida
The calm sea and white sand of the famous Deerfield Beach in Florida

The climate of Deerfield Beach

Deerfield Beach is characterized by a notable Am or Tropical monsoon climate under the Köppen climate classification. This coastal city in Florida experiences a mix of high temperatures, high humidity levels, and considerable seasonal rainfall.

Throughout the year, the monthly average temperatures remain relatively high, ranging from 64.2°F (17.9°C) in January to a peak of 86.5°F (30.3°C) in July, reflecting the hallmark warmth of tropical climates. The humidity levels complement this temperature trend by staying above 70% throughout the year, with marginal fluctuations from 70% in March to a peak of 75% in September.

Rainfall is notably seasonal in Deerfield Beach, with the driest months marked by significantly less precipitation compared to the wettest months. The amount of rainfall ranges from a modest 1.38" (35mm) in January to a high of 8.35" (212mm) in August. The number of rainfall days echoes this pattern, starting at 14.2 days in January and peaking at 28 days in August. The sea temperature, influenced by the tropical climate, varies from a low of 74.2°F (23.4°C) in January and February to a high of 86.3°F (30.2°C) in August, inviting visitors to beach-related activities most parts of the year.

The city also enjoys considerable daylight hours throughout the year, from a minimum of 10.5 hours in December to a maximum of 13.8 hours in June. Sunshine hours range between 6.2 hours in January, December to a high of 10.9 hours in July, with a notable dip in sunny days during the wettest months.

The best time to visit Deerfield Beach

The optimal time to visit Deerfield Beach would be during the driest months, beginning in January with just 1.38" (35mm) of rainfall and only 14.2 days experiencing precipitation. This dry period extends until March, but the average rainfall starts increasing in April. In these months, temperatures are comfortable, ranging from 64.2°F (17.9°C) to 67.8°F (19.9°C), with humidity levels maintaining around 70% to 72%. Coupled with a sea temperature that stays within 74.2°F (23.4°C) to 75.8°F (24.3°C), these conditions favor different outdoor activities, including swimming and sunbathing.

The worst time to visit Deerfield Beach

Conversely, the least favorable time for a visit to Deerfield Beach would be during the wettest months when the rainfall reaches its peak. Starting in June, rainfall increases dramatically to 6.69" (170mm), leading up to August's high of 8.35" (212mm). The number of rainfall days increases accordingly, peaking at 28 days in August. The humidity becomes more pervasive during these months, hovering around 73 to 75%. The high precipitation levels and humidity, combined with temperatures elevating to 84.9°F (29.4°C) to 87.1°F (30.6°C), can make these months less comfortable for visitors not accustomed to intense tropical climate conditions.

Spring weather in Deerfield Beach

Spring in Deerfield Beach, extending from March to May, starts to heat up. Temperatures range from 67.8°F (19.9°C) to 75.4°F (24.1°C), while the humidity levels hover around 70% to 73%. The rainfall also sees an uptick during this season, increasing from 1.69" (43mm) in March to a substantial 5.71" (145mm) in May. This rise is mirrored by an increase in the number of rainfall days from 14.7 in March to 20.9 in May. Despite the rising temperatures and rainfall, the sea temperatures, ranging from 75.8°F (24.3°C) to 80.8°F (27.1°C), provide suitable conditions for watersports and other water-related activities.

Summer weather in Deerfield Beach

Summer in Deerfield Beach, from June to August, witnesses the peak of both the average temperatures and rainfall. The mercury climbs from 84.9°F (29.4°C) in June to a yearly high of 87.1°F (30.6°C) in August. Amidst the high temperatures, the humidity reaches 75% in June and stays at around 73% for the rest of the summer. Rainfall touches a significant 8.35" (212mm) in August, with the number of rainy days peaking at 28. Despite the heat and heavy rainfall, the sea temperature achieves a high of 86.3°F (30.2°C) in August, offering an enchanting invitation to the beach.

Autumn weather in Deerfield Beach

The autumn in Deerfield Beach, spanning September to November, experiences a decreasing trend in temperatures, rainfall, and humidity levels. The temperature dips from 85.3°F (29.6°C) in September to 78.1°F (25.6°C) in November. Rainfall sees a reduction from 7.28" (185mm) in September to 2.76" (70mm) in November. Concurrently, the number of rainfall days drops to 18.5 days in November. Despite the season's change, the sea temperature remains within a comfortable range from 85.1°F (29.5°C) to 78.9°F (26.1°C), continuing to invite beach-goers.

Winter weather in Deerfield Beach

Winter, from December to February, brings in the mildest temperatures of the year to Deerfield Beach. The temperature ranges from a low of 64.2°F (17.9°C) in January to a more moderate 66.7°F (19.3°C) in February. The rainfall reduces significantly, staying below 2" (51mm) throughout the winter season. The number of rainfall days also decreases, reaching 16.5 days in December. Despite the milder temperatures, the sea temperature remains relatively warm, ranging from 74.2°F (23.4°C) to 76.1°F (24.5°C), making it possible for visitors to enjoy different water activities even in the midst of winter.

Weather in January

The beginning of a new year in Deerfield Beach, Florida, presents mild temperatures, although humidity levels in January are slightly higher compared to other months with a relative humidity of 72%. Ocean breezes are consistent, often contributing to the comfortable coolness. Weather in January »

Weather in February

The weather in February in Deerfield Beach, Florida, experiences a short departure from January's temperate conditions, with a noticeable increase in the average daily minimum and maximum temperatures. There is a distinctive transition in the air as one moves from the slightly cool mornings to warm afternoons. Weather in February »

Weather in March

March ushers in higher temperatures with pleasant tropical vibes in Deerfield Beach, Florida. Rainfall picks up from the previous months with an average rainfall accumulation of 1.69" (43mm). Spectacular sunsets, marked by longer daylight hours, become a highlight. Weather in March »

Weather in April

April in Deerfield Beach, Florida, marks the commencement of a gradual increase in humidity levels, temperature, and rainfall accumulation. With an average rainfall of 3.07" (78mm) coupled with longer daylight hours, the city remains lively. Weather in April »

Weather in May

May ushers in the beginning of Deerfield Beach, Florida's summer season with a meteoric rise in temperature and an average monthly rainfall of 5.71" (145mm). This month is earmarked by the increased UV index, signally the sun's heightened intensity. Weather in May »

Weather in June

June in Deerfield Beach, Florida, is characterized by a notably high temperature accompanied by increased humidity of 75%. The beach city's vibrant atmosphere contributes to the overall summer allure. Despite the elevated rainfall accumulation witnessed in this month, sunny days are not uncommon. Weather in June »

Weather in July

In July, Deerfield Beach, Florida, experiences its peak summer month with an average maximum temperature of 86.5°F (30.3°C) and an impressively high average sea temperature. Beach activities are at their zenith during this month, reinforcing Florida's appeal as a top summer destination. Weather in July »

Weather in August

August continues the tropical rhythm of Deerfield Beach, Florida, with similar temperature and humidity values as those of July. However, rainfall peaks in August with an average accumulation of 8.35" (212mm) - the highest for the year. Weather in August »

Weather in September

As Deerfield Beach, Florida's summer draws to a close in September, there is a slight decrease in average maximum and sea temperatures, making the weather pleasantly mild. Undulated by a prolonged summer, September witnesses a decrease in humidity levels and a fall in the UV index from the high of the summer months. Weather in September »

Weather in October

October marks the beginning of fall in Deerfield Beach, Florida, resulting in a clear transition from the humid summer months. As sunshine hours decrease, rainfall records a significant drop from September's high with 4.92" (125mm) recorded. Weather in October »

Weather in November

November in Deerfield Beach, Florida, is part of the transition towards the cooler winter months, experienced through the progressive drop in temperatures. A decrease in average rainfall accumulation to 2.76" (70mm) signals the end of the wet season. Weather in November »

Weather in December

Deerfield Beach, Florida, ushers in December with relatively milder temperatures with the average low temperature resting at 68.4°F (20.2°C). Despite it being the last month of the year, the warmer coastal climate maintains characteristically mild winter days. Weather in December »

Frequently asked questions

What is the coldest time of year in Deerfield Beach?

January, marked by an average high-temperature of 72.5°F (22.5°C) and a low-temperature of 64.2°F (17.9°C), is the coldest month.

What is the driest month in Deerfield Beach?

January is the month with the least rainfall in Deerfield Beach, Florida. Rain falls for 14.2 days and accumulates 1.38" (35mm) of precipitation.

How many days does it rain in Deerfield Beach?

In Deerfield Beach, Florida, during the entire year, the rain falls for 243.5 days and collects up to 53.31" (1354mm) of precipitation.

What months are the ocean coldest in Deerfield Beach?

January and February, with an average ocean temperature of 74.3°F (23.5°C), are months with the coldest seawater.

What is the month with the least sunshine in Deerfield Beach?

The months with the least sunshine in Deerfield Beach are January and December, with an average of 6.2h of sunshine.

What is the month with the lowest UV index in Deerfield Beach?

With an average maximum UV index of 5, January is the month with the lowest UV index.

What is the least humid month in Deerfield Beach?

The least humid month in Deerfield Beach is March, with an average relative humidity of 70%.

When is Daylight Saving Time (DST) in Deerfield Beach?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Deerfield Beach, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What are the months with the highest UV index in Deerfield Beach?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Deerfield Beach, Florida.

What are the most humid months in Deerfield Beach?

The months with the highest humidity in Deerfield Beach, Florida, are June and December, with an average relative humidity of 75%.

When are the longest days in Deerfield Beach?

June has the longest days of the year in Deerfield Beach, Florida, with an average of 13h and 48min of daylight.

What month has the most sunshine in Deerfield Beach?

With an average of 10.9h of sunshine, July has the most sunshine of the year.

What is the hottest time of year in Deerfield Beach?

In Deerfield Beach, Florida, the peak temperatures are generally noted in August, averaging a high of 87.1°F (30.6°C) and a low of 81.5°F (27.5°C).

What is the rainiest month in Deerfield Beach?

August is the month with the most rainfall in Deerfield Beach, Florida. Rain falls for 28 days and accumulates 8.35" (212mm) of precipitation.

What is the month with the warmest ocean in Deerfield Beach?

The month with the warmest seawater in Deerfield Beach is August, with an average ocean temperature of 86.4°F (30.2°C).

What is the month with the shortest days in Deerfield Beach?

With an average of 10h and 30min of daylight, December has the shortest days of the year in Deerfield Beach.

Average temperature
Deerfield Beach, FL

Average temperature - Deerfield Beach, FL

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (72.5°F).

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).

Average pressure
Deerfield Beach, FL

Average pressure - Deerfield Beach, FL

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

Average wind speed
Deerfield Beach, FL

Average wind speed - Deerfield Beach, FL

The windiest month (with the highest average wind speed) is March (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity
Deerfield Beach, FL

Average humidity - Deerfield Beach, FL

The months with the highest relative humidity are June and December (75%).
The month with the lowest relative humidity is March (70%).

Average rainfall
Deerfield Beach, FL

Average rainfall - Deerfield Beach, FL

The wettest month (with the highest rainfall) is August (8.35").
The driest month (with the least rainfall) is January (1.38").

Average rainfall days
Deerfield Beach, FL

Average rainfall days - Deerfield Beach, FL

The month with the highest number of rainy days is August (28 days).
The month with the least rainy days is February (13 days).

Average sea temperature
Deerfield Beach, FL

Average sea temperature - Deerfield Beach, FL

The best month for swimming (with the highest average sea temperature) is August (86.3°F).
The coldest months (with the lowest average sea temperature) are January and February (74.2°F).

Average daylight / Average sunshine
Deerfield Beach, FL

Average daylight / Average sunshine - Deerfield Beach, FL

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 12min).

Average sunshine days
Deerfield Beach, FL

Average sunshine days - Deerfield Beach, FL

The month with the most sunshine days is March (12.1 days).
The months with the least sunshine days are July and August (1.7 days).

Average UV index
Deerfield Beach, FL

Average UV index - Deerfield Beach, FL

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).

Average visibility
Deerfield Beach, FL

Average visibility - Deerfield Beach, FL

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Deerfield Beach, Florida, USA

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