Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a slight decrease in the average high-temperature, shifting from a warm 79.9°F (26.6°C) in August to a pleasant 73.2°F (22.9°C). Jamaica records a negligible downturn from daytime temperatures, averaging a low of 64.2°F (17.9°C) in the month of September.Humidity
In Jamaica, the average relative humidity in September is 74%.Rainfall
In September, in Jamaica, the rain falls for 12.4 days. Throughout September, 1.38" (35mm) of precipitation is accumulated. In Jamaica, during the entire year, the rain falls for 135.3 days and collects up to 18.62" (473mm) of precipitation.Snowfall
In Jamaica, snow does not fall in April through September.Ocean temperature
In Jamaica, in September, the average water temperature is 70.2°F (21.2°C).Note: The majority of individuals do not enjoy swimming in water that is 70.2°F (21.2°C). Breathing control becomes more challenging as the water temperature dips from 69.8°F (21°C) to 59°F (15°C).
Daylight
The average length of the day in September is 12h and 27min.On the first day of September in Jamaica, sunrise is at 6:22 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:38 pm EDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
In September, the average daily maximum UV index in Jamaica is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Act with care - The suggestion to avoid sunburn is emphasized. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take note! The UV strength of the Sun elevates when reflected off water and sand.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Jamaica?
What is the average humidity in September in Jamaica?
How much does it rain in Jamaica in September?
When it does not snow in Jamaica?
Does it snow in Jamaica in September?
What is the ocean temperature in September in Jamaica?
How many hours of daylight does Jamaica have in September?
What time are sunrise and sunset in September in Jamaica?
How many hours of sunshine does Jamaica have in September?
What is the UV index intensity in September in Jamaica?
Average temperature in September
Jamaica, NY
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in September: 64.2°F
The month with the highest average low temperature is August (71.1°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in September
Jamaica, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Jamaica, NY
- Average wind speed in September: 9.1mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Jamaica, NY
- Average humidity in September: 74%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (72%).
Average rainfall in September
Jamaica, NY
- Average rainfall in September: 1.38"
The wettest months (with the highest rainfall) are July and August (2.32").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in September
Jamaica, NY
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Jamaica, NY
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.02").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Jamaica, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in September
Jamaica, NY
- Average sea temperature in September: 70.1°F
The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).
Average daylight in September /
Average sunshine in September
Jamaica, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Jamaica, NY
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in September
Jamaica, NY
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Jamaica, NY
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Jamaica, NY
- Average visibility in September: 6mi
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).
Jamaica, New York, USA
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