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Average weather for Manuel Antonio in September

It's warm in September in Manuel Antonio with an average temperature of 28°C. Temperatures this month range from a low of 27°C to a high of 29°C. At night, you can expect temperatures between 18°C and 20°C.

Daily Temperature in September in Manuel Antonio

Start of September

The month of September starts in Manuel Antonio with hot temps, averaging around 29°C during the day and nights around 20°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.

With the temperature difference between day and night, it’s smart to wear layers.

Mid September

By mid-September, daytime temps stay steady at around 29°C, with nights around 20°C. There’s a high chance of precipitation during this time.

Since it cools down at night, it’s a good idea to wear layers.

End of September

By the end of September, the average daytime temperature in Manuel Antonio is around 29°C, while nighttime temps are about 20°C. There’s a significant chance of many days with precipitation.

Because temperatures drop in the evening, wearing layers is recommended.

In September, there is an average of 160 mm of precipitation, spread over 23 days. The wind speed is around 3 Bft, mostly coming from the West.

Manuel Antonio in September

New York
Temperature Average temperature
28°C 27°C
Sun Max. temperature
29°C 31°C
Sun Min. temperature
27°C -5°C
Rain Total precipitation
160 mm 57 mm
Rain Rainy days
23 days 9 days

UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Is September a good time to visit Manuel Antonio?

Looking for sun? September isn’t a good month to be in Manuel Antonio. The temperature is nice, but there’s too much chance of rain.

Temperature records

With 34°C in 2014, Manuel Antonio reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 23°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 23°C.

Check out the climate of Manuel Antonio for all months and discover the best travel time

Daily Temperature in September in Manuel Antonio

This chart shows the average daily high and low temperatures in September for Manuel Antonio, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in September in Manuel Antonio

Daily Precipitation in September in Manuel Antonio

The chart below shows the average daily precipitation in September for Manuel Antonio, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 23 days of precipitation in Manuel Antonio.

Daily Precipitation in September in Manuel Antonio

Daily UV index in September in Manuel Antonio

This chart shows the average daily UV index in September in Manuel Antonio, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Daily UV Index in September in Manuel Antonio

Temperature in September in Manuel Antonio over the years

This chart shows the average temperature in September in Manuel Antonio, measured in degrees Celsius, over the past few years.

Temperature in September in Manuel Antonio Over the Years

Total precipitation in September in Manuel Antonio over the years

This chart shows the average precipitation in September in Manuel Antonio, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in September in Manuel Antonio over the years

Daily weather in September for Manuel Antonio

Click on any day in September to get detailed info about the usual weather on that day in Manuel Antonio. Check out the historical temperatures and precipitation over the past 10 years on this day.

Weather experiences in September in Manuel Antonio

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Average weather in Manuel Antonio by month

Click on a month below to see detailed weather info for Manuel Antonio. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.


Or check out the climate of Manuel Antonio for all months at once

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