Climate and monthly weather forecastMiami, FL
Climate and monthly weather forecast
The climate of Miami
Situated in the southeastern corner of the U.S. state of Florida, Miami experiences a tropical monsoon climate, classified as 'Am' under the Köppen climate classification. This climate type is characterized by hot and humid summer months and warm winters, with significant rainfall occurring throughout the year.Across the year, the high temperatures vary from 73°F (22.8°C) in the cooler months to 87.1°F (30.6°C) in the warmer periods. The high temperature tends to peak at 87.1°F (30.6°C) during August and declines to 73°F (22.8°C) by December, indicating the subtropical nature of Miami's climate. The lower temperature ranges from 65.1°F (18.4°C) in the coldest months to 82.6°F (28.1°C) in the warmest.
The city experiences high relative humidity, alternating in the narrow range of 70% up to 75% throughout the year. Rainfall levels peak in the summer at 2.8" (71mm) in August, while the relatively drier winter months record lower rainfall, with December seeing just 0.75" (19mm). The proportion of cloudy days stands relatively stable around 30%, indicating a good deal of sunshine through the year.
The best time to visit Miami
The most pleasant months to visit Miami are often neck and neck between March and May, when the weather is warm, but not overly hot, and rainfall is still relatively low. High temperatures in spring range from 73°F (22.8°C) to 82°F (27.8°C) and low temperatures remain between 65.1°F (18.4°C) to 77°F (25°C).Furthermore, Miami boasts an extended daylight duration, with the daylight hours gradually increasing from 12 in March to a yearly high of 13.7 in June. The number of sunshine hours also increases from 8.7 in March to a peak of 11.1 in July, creating ideal conditions for outdoor activities.
The worst time to visit Miami
Miami's heavy rainfall season, which falls between June and September, may not be the most appealing period for some visitors. The number of rainfall days climbs swiftly to a peak of 24.5 in September. Combined with high relative humidity, hovering above 70%, it creates a very humid and often uncomfortable climate.Additionally, although the sea temperature peaks at 86.5°F (30.3°C), providing perfect conditions for beach-goers and swimmers, it is counterbalanced by the highest rainfall levels of the year, reaching up to 2.8" (71mm) in August.
Spring weather in Miami
Spring in Miami is marked by gradually rising temperatures, from a high of 73°F (22.8°C) in March to a high of 82°F (27.8°C) in May. Low temperatures also increase, ranging between 65.1°F (18.4°C) and 77°F (25°C). This period of the year is relatively dry with rainfall levels increasing from 0.43" (11mm) in March to 1.77" (45mm) in May.The duration of daylight lengthens in this period from 12 hours to a year's second-highest 13.4 hours in May. The number of sunshine hours also rises, making Spring an ideal time to experience the beauty of Miami.
Summer weather in Miami
Summer in Miami is characterized by high temperatures, with highs peaking at 87.1°F (30.6°C) and lows reaching up to 82.6°F (28.1°C). This season brings the most significant rainfall with a peak at 2.8" (71mm) in August. On across the summer, the city experiences between 13.6 to 13.7 daylight hours and about 10.7 sunshine hours.One significant aspect of Miami's summer is the high sea temperature, peaking around 86.5°F (30.3°C), which, combined with the substantial daylight and sunshine hours, makes for enjoyable beach days.
Autumn weather in Miami
Autumn in Miami still carries a summer vibe in its early months with high temperatures in September hovering around 85.6°F (29.8°C). However, by November, the temperature drops to a mellow 77.9°F (25.5°C). Rainfall levels gradually decrease from 1.93" (49mm) in September to 0.83" (21mm) in November.Acceptably warm sea temperatures persist throughout this season, starting at 85.4°F (29.7°C) in September and ending at a still-enjoyable 79°F (26.1°C) in November, providing an extended swimming season compared to most other locations.
Winter weather in Miami
Winter in Miami is mild with high temperatures fluctuating from 77.9°F (25.5°C) in December to a relatively cooler 73°F (22.8°C) in February. The low temperatures vary between 69.4°F (20.8°C) and 72.3°F (22.4°C), making it warmer than most winter destinations.Winter is the driest season in Miami with rainfall levels below 1 inch between December and February. The sunshine spans between 6.4 hours to 6.5 hours, attracting those seeking respite from colder, darker climates. Despite the reduction in sea temperature to 76.4°F (24.7°C) by the end of February, Miami winters still offer warm opportunities for ocean-related activities.
Weather in January
The start of the year in Miami, Florida brings a mild and consistent climate. A remarkable trait of this month is the lowest yearly pressure at 30.11 in, dictating stable and predictable weather conditions. Although January is the coldest month of the year, the days are still quite warm with ample exposure to sunlight complemented by fair visibility. Weather in January »Weather in February
February sees a gradual increase in temperature and sunlight duration in Miami, Florida. This month is notable for registering the lowest yearly wind speed, clocking in at an average of 11.1mph (17.9km/h). Relative to January, a marginally more humid environment can be sensed, and this is accompanied by an uptick in temperature and a slight increase in rainfall. Weather in February »Weather in March
As Miami, Florida transits into spring, temperatures continue to climb, indicating a transition towards the heat of the coming months. The wind speed picks up this month, recording an average speed of 11.6mph (18.7km/h), contributing to a refreshing breeze in the city. Weather in March »Weather in April
April signifies the onset of higher temperatures and longer days in Miami, Florida, which continue to rise as summer throes approach. The unique point this month is the highest ever recorded visibility of 6 miles, making this period an ideal time for outdoor activities. Weather in April »Weather in May
May is the month when Miami, Florida starts experiencing significant indicators of the sizzling summer ahead. The distinct aspect of May is the sharp increase in rainfall to a whopping 1.77 in, signalling the start of the wet season. Weather in May »Weather in June
Miami, Florida in June is characterized by high heat and increased humidity, echoing typical tropical summer conditions. This month's uniqueness lies in the maximum temperature reaching up to 84.7°F (29.3°C). Compared to May, temperatures and humidity levels are greater, but the weather does not get uncomfortably hot due to the cooling impact of the ocean. Weather in June »Weather in July
July in Miami, Florida brings the height of summer with it, accompanied by hot days and frequent afternoon rain showers. The most prominent weather feature of July is the soaring daytime temperature, reaching the year's maximum of 86.5°F (30.3°C). Weather in July »Weather in August
August is the month when Miami, Florida experiences its peak summer weather conditions. The weather characteristic that stands out this month is the yearly maximum night-time temperature of 82.6°F (28.1°C). Compared to July, the onset of August brings with it similar temperatures but with slightly more rainfall. Weather in August »Weather in September
In September, Miami, Florida experiences a gradual decline in temperature marking the end of the sweltering summer season. The saturated air, attaining the year's highest humidity of 73%, is a significant feature this month. Compared to the preceding month, September is cooler yet maintains a similar pattern of afternoon thunderstorms. Weather in September »Weather in October
October in Miami, Florida experiences a significant decline in temperature and rainfall, signaling the onset of the dry season. A marked drop in rainfall to 1.65 in defines the climate situation this month. Compared to September, October brings a much-needed reprieve from the heavy rains and high temperatures. Weather in October »Weather in November
November in Miami, Florida observes a substantial drop in temperature as the city moves into its winter season. Notably less rainfall and a decrease to 72.3°F (22.4°C) in night-time temperatures deem this month as the start of the cool season. Weather in November »Weather in December
December in Miami, Florida displays pleasant weather conditions accompanied by comfortable temperatures and low rainfall. The distinctive attribute of December is the longest nights with an average length of 10.5 h. Relative to November, December is further cooler and drier, maintaining the city's reputation for having a mild winter. Weather in December »Updated: Aug 17, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month that records the lowest temperatures, with averages ranging from a high of 73°F (22.8°C) to a low of 65.1°F (18.4°C).
January is the month with the least rainfall. Rain falls for 9.2 days and accumulates 0.43" (11mm) of precipitation.
Throughout the year, there are 182.7 rainfall days, and 16.38" (416mm) of precipitation is accumulated.
The months with the lowest UV index are January and December, with an average maximum UV index of 5.
The month with the coldest seawater is February, with an average ocean temperature of 73.9°F (23.3°C).
March is the least humid month, with an average relative humidity of 70%.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
The months with the highest UV index are May through October, with an average maximum UV index of 7.
With an average of 13h and 42min of daylight, June has the longest days of the year in Miami.
With an average of 11.1h of sunshine, July has the most sunshine of the year in Miami.
August, having an average high-temperature of 87.1°F (30.6°C) and an average low-temperature of 82.6°F (28.1°C), is the warmest month.
August is the month with the most rainfall. Rain falls for 22.1 days and accumulates 2.8" (71mm) of precipitation.
With an average ocean temperature of 86.5°F (30.3°C), August is the month with the warmest seawater in Miami.
With an average relative humidity of 75%, December is the most humid month.
With an average of 10h and 36min of daylight, December has the shortest days of the year.
The month with the least sunshine is December, with an average of 6.4h of sunshine.
Average temperature
Miami, 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 (73°F).
The month with the highest average low temperature is August (82.6°F).
The coldest month (with the lowest average low temperature) is January (65.1°F).
Average pressure
Miami, FL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
30.02"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
30"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
29.95"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).
Average wind speed
Miami, FL
- Average wind speed in January:
11.5mph - Average wind speed in February:
11.1mph - Average wind speed in March:
11.6mph - Average wind speed in April:
11.3mph - Average wind speed in May:
10.6mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
8.1mph - Average wind speed in August:
8.5mph - Average wind speed in September:
8.5mph - Average wind speed in October:
11.1mph - Average wind speed in November:
11.4mph - Average wind speed in December:
11.1mph
The windiest month (with the highest average wind speed) is March (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity
Miami, FL
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (70%).
Average rainfall
Miami, FL
- Average rainfall in January:
0.43" - Average rainfall in February:
0.51" - Average rainfall in March:
0.51" - Average rainfall in April:
0.75" - Average rainfall in May:
1.77" - Average rainfall in June:
2.01"
- Average rainfall in July:
2.44" - Average rainfall in August:
2.8" - Average rainfall in September:
1.93" - Average rainfall in October:
1.65" - Average rainfall in November:
0.83" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Miami, FL
- Average rainfall days in January:
9.2 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
9.3 days - Average rainfall days in April:
12 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
19 days
- Average rainfall days in July:
21.4 days - Average rainfall days in August:
22.1 days - Average rainfall days in September:
24.5 days - Average rainfall days in October:
17.3 days - Average rainfall days in November:
12.2 days - Average rainfall days in December:
11.7 days
The month with the highest number of rainy days is September (24.5 days).
The month with the least rainy days is February (8.7 days).
Average sea temperature
Miami, FL
The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is February (74°F).
Average daylight / Average sunshine
Miami, 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 24min - Average daylight in June:
13h and 42min
- Average daylight in July:
13h and 36min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 54min - Average daylight in December:
10h and 36min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in January:
6h and 30min - Average sunshine in February:
8h and 36min - Average sunshine in March:
8h and 42min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 42min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 6min - Average sunshine in October:
6h and 48min - Average sunshine in November:
6h and 30min - Average sunshine in December:
6h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days
Miami, FL
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
17 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
7.2 days
- Average sunshine days in July:
5.6 days - Average sunshine days in August:
4.4 days - Average sunshine days in September:
3.2 days - Average sunshine days in October:
9 days - Average sunshine days in November:
11.9 days - Average sunshine days in December:
14.5 days
The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (3.2 days).
Average UV index
Miami, FL
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover
Miami, FL
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility
Miami, 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).
