Climate and monthly weather forecastWest Palm Beach, FL

Climate and monthly weather forecast
The climate of West Palm Beach
West Palm Beach, positioned in Florida, USA, falls under the tropical rainforest climate, classified as Af under the Köppen climate system. The city experiences warm temperatures year-round, with high relative humidity. The temperatures range from the lowest average of 64.2°F (17.9°C) in January to the highest average of 86.5°F (30.3°C) in August. There is a clear increase in temperature from the start of the year, with a peak in the middle of the summer before it starts declining towards the year's end.Relative humidity remains fairly steady throughout the year, ranging from 70% in March to the year’s highest, 76% in June. Rainfall presents an integral aspect of West Palm Beach's climate, with significant fluctuations across the seasons. January witnesses the least rain, at 0.51" (13mm), ascending to 4.13" (105mm) in August, the wettest month.
Wind speed demonstrates a corresponding decline during the hotter months, with an average wind speed of 11.7mph (18.8km/h) in January and spiraling down to a mere 8mph (12.9km/h) in August. On the other hand, daylight hours increase from 10.7 in January to a peak of 13.8 hours in June, progressively dropping towards the end of the year.
Several anomalies deserve special attention in this tropical climate. Notably, there is a sharp rise in the number of days with rain from May to September, which is considered the city's wet season. Contrastingly, the duration of sunshine per day increases from January, reaching its zenith in July with 11 hours, then dropping to 6.1 hours again in December.
The best time to visit West Palm Beach
For individuals seeking the sunny outdoors, the best time to visit West Palm Beach would be between April and July. During this time, the city enjoys longer sunshine hours, with an average of 10 to 11 hours of sunshine a day. Combined with the relatively moderate rainfall, these months provide the perfect weather conditions for outdoor activities, offering visitors an opportunity to fully take advantage of the city's stunning beaches and vibrant outdoor scenes.The worst time to visit West Palm Beach
Visitors might want to avoid the months from August to October when the weather in West Palm Beach is particularly inhospitable. Rainfall surges during these months, with an average of 22 to 25 days of rain per month. Coupled with the high temperatures that can reach up to 86.5°F (30.3°C), this period is not particularly favorable for outdoor activity. Moreover, the city generally has less sunlight during this phase, further detracting from its appeal to visitors.Spring weather in West Palm Beach
In West Palm Beach, spring unfolds from March to May, with temperatures warming up from 67.8°F (19.9°C) to 72.7°F (22.6°C). The city gets an average of 12-14.8 days of rain per month during this period, with rainfall escalating from 0.67" (17mm) in March to 2.24" (57mm) in May. Despite the increasing rainfall, the city enjoys more sunlight, with daylight hours increasing from 12 to 13.5 hours per day. Moreover, the wind gently weakens as spring progresses.Summer weather in West Palm Beach
Summer descends on West Palm Beach from June to August. During this period, temperatures increase to an average high of 86.2°F (30.1°C) in July and 86.5°F (30.3°C) in August. The summer months are also the rainiest, with upwards of 21.8 to 24.8 days of rain per month and inches of rainfall peaking at 4.13 in August. Despite the rain, summer still witnesses the longest days, with daylight hours averaging at 13.8 to 13.1.Autumn weather in West Palm Beach
West Palm Beach's autumn season, spanning from September to November, brings a gradual reduction in temperature, from 84.7°F (29.3°C) in September to 77.5°F (25.3°C) in November. The monthly rainfall starts a downward trend, ranging from 2.87" (73mm) in September to 1.26" (32mm) by November. Correspondingly, the days start getting shorter, with daylight hours reducing from 12.3 in September to 10.8 in November.Winter weather in West Palm Beach
Winter in West Palm Beach extends from December to February, characterized by relatively cooler temperatures, with an average low of 64.2°F (17.9°C) in January. The city experiences the leanest phase of precipitation during winter, with rainfall dipping to just 0.51" (13mm) in January. Despite the decrease in rainfall, winter days tend to be shorter, with daylight hours at their lowest, averaging from 10.5 hours in December to 11.3 hours by February.Weather in January
West Palm Beach, Florida, begins the year with temperatures that other cities might envy. This mild winter month brings around 10.7 hours of daylight per day with moderate humidity. Winds show an average speed of 11.7mph (18.8km/h), resulting in a refreshing atmosphere. Weather in January »Weather in February
As the year progresses, February follows the gentle winter trend of its predecessor. During this month, West Palm Beach finds its stride with consistent and pleasant weather conditions. Among noticeable factors, the increased sunlight hours, up to 11.3 hours daily, gradually begins to differentiate February from January. Weather in February »Weather in March
March welcomes spring into West Palm Beach with the promise of slightly hotter days and longer daylight hours. Residents and visitors could enjoy up to 12 hours of daylight as the city moves deeper into the year. UV index begins to rise, inviting locals to take precautions for skin protection. Weather in March »Weather in April
April confirms the spring weather in West palm Beach by sustaining the temperature climb that began in March. This warmer month, with its consistent humidity, highlights the close proximity of the Atlantic and the climatic influence it commands. Weather in April »Weather in May
May is a significant month for West Palm Beach marking the beginning of the hot summer season. There is a discernable rise in the temperature and humidity levels, challenging the comfort zone of some residents. Expect increased hours of daylight extending up to 13.5 hours, enabling longer periods for leisure activities. Weather in May »Weather in June
June is the onset of the peak summer season in West Palm Beach, characterized by very warm temperatures and high humidity. The city bathes in extended daylight of up to 13.8 hours presenting ample opportunities for beach activities. Weather in June »Weather in July
July carries forward the peak summer conditions experienced in June, characterized by high heat levels and humidity. Despite these conditions, residents indulge in outdoor activities thanks to the prolonged daylight hours. Given the trend, it is advisable to be prepared for potentially heavy rainfall episodes. Weather in July »Weather in August
With the passing of the peak summer month, August maintains the warm weather conditions in West Palm Beach. Even though high temperatures and humidity persist, this month introduces a relaxation in weather patterns. An increase in rainfall, reaching 4.13" (105mm), is observed hinting at the culmination of peak summer. Weather in August »Weather in September
September in West Palm beach acts as a bridge connecting the hot summer with the milder seasons. The weather continues to be warm but begins to show signs of a shift in temperature trends. Notably, there is a drop in the amount of daylight hours which starts to impact outdoor activities. Weather in September »Weather in October
October begins to display noticeable shifts in weather patterns as West Palm beach bids farewell to summer. This month brings with it a balance between bright days and cooler nights. A continuation of the lesser daylight hours is observed, alerting to the arrival of the colder half of the year. Weather in October »Weather in November
By November, West Palm Beach finds itself firmly in the grips of the fall season characterized by balmy weather conditions. The month offers cooler relief after the long summer and proves conducive for a wide range of activities. Weather in November »Weather in December
December brings the year in West Palm Beach to a close with unmistakable winter patterns. With its temperate climate and mild weather, this month continues to be inviting for various activities. Expect to witness restricted sunlight owing to 10.5 hours of daylight, signifying the winter solstice. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
West Palm Beach, FL
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is January (72°F).
The month with the highest average low temperature is August (81.3°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).
Average pressure
West Palm Beach, FL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.04"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed
West Palm Beach, FL
- Average wind speed in January:
11.7mph - Average wind speed in February:
11.3mph - Average wind speed in March:
11.8mph - Average wind speed in April:
11.4mph - Average wind speed in May:
10.5mph - Average wind speed in June:
8.4mph
- Average wind speed in July:
8mph - Average wind speed in August:
8.3mph - Average wind speed in September:
8.8mph - Average wind speed in October:
11.4mph - Average wind speed in November:
11.7mph - Average wind speed in December:
11.3mph
The windiest month (with the highest average wind speed) is March (11.8mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity
West Palm Beach, FL
The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is March (70%).
Average rainfall
West Palm Beach, FL
- Average rainfall in January:
0.51" - Average rainfall in February:
0.83" - Average rainfall in March:
0.67" - Average rainfall in April:
1.1" - Average rainfall in May:
2.24" - Average rainfall in June:
2.91"
- Average rainfall in July:
3.11" - Average rainfall in August:
4.13" - Average rainfall in September:
2.87" - Average rainfall in October:
2.05" - Average rainfall in November:
1.26" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days
West Palm Beach, FL
- Average rainfall days in January:
9.8 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
12.9 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
21.8 days
- Average rainfall days in July:
24.2 days - Average rainfall days in August:
24.8 days - Average rainfall days in September:
25 days - Average rainfall days in October:
16.7 days - Average rainfall days in November:
12.9 days - Average rainfall days in December:
11.1 days
The month with the highest number of rainy days is September (25 days).
The month with the least rainy days is February (9.3 days).
Average sea temperature
West Palm Beach, FL
The best month for swimming (with the highest average sea temperature) is August (85.7°F).
The coldest month (with the lowest average sea temperature) is January (74.1°F).
Average daylight / Average sunshine
West Palm Beach, FL
- Average daylight in January:
10h and 42min - Average daylight in February:
11h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 48min - Average daylight in May:
13h and 30min - Average daylight in June:
13h and 48min
- Average daylight in July:
13h and 36min - Average daylight in August:
13h and 6min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 48min - Average daylight in December:
10h and 30min
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).
- Average sunshine in January:
6h and 6min - Average sunshine in February:
8h and 12min - Average sunshine in March:
8h and 24min - Average sunshine in April:
9h and 48min - Average sunshine in May:
10h and 36min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
10h and 48min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 48min - Average sunshine in November:
6h and 18min - Average sunshine in December:
6h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).
Average sunshine days
West Palm Beach, FL
- Average sunshine days in January:
18.2 days - Average sunshine days in February:
16.1 days - Average sunshine days in March:
18 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
12.7 days - Average sunshine days in June:
5.5 days
- Average sunshine days in July:
4 days - Average sunshine days in August:
3.5 days - Average sunshine days in September:
3.6 days - Average sunshine days in October:
10.8 days - Average sunshine days in November:
13.7 days - Average sunshine days in December:
16 days
The month with the most sunshine days is January (18.2 days).
The month with the least sunshine days is August (3.5 days).
Average UV index
West Palm Beach, FL
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and February (UV index 5).
Average cloud cover
West Palm Beach, FL
The months with the most cloud cover are January, November and December (Cloud cover 35).
The months with the least cloud cover are May, July and August (Cloud cover 28).
Average visibility
West Palm 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).





