Weather in San Juan in September 2018

  • 27°C maximum daytime temperature in September in San Juan27
    27°C max day temperature
  • 8 hours of sunshine per day (64% of daylight hours) in September in San Juan8
    8 hours of sunshine per day
  • 7 days with some rainfall in September in San Juan7
    7 days with some rainfall
  • 19°C minimum night-time temperature in September in San Juan19
    19°C min night temperature
  • 12 hours of daylight per day in September in San Juan12
    12 hours of daylight per day
  • Low heat & humidity in September in San JuanL
    Low heat & humidity
  • 48 mm monthly rainfall in September in San Juan48
    48 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in San Juan6
    6 (High) UV index
  • 25°C sea temperature in September in San Juan25
    25°C sea temperature

Going to San Juan? Find the best month to visit San Juan based on the weather.

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Expect 27°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in San Juan in September. Check more long-term weather averages for San Juan in September before you book your next holiday to Ibiza in 2018.

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More about San Juan

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Metric (°C / mm)  |  Imperial (°F / inches)

Guide to San Juan weather in September

The average maximum daytime temperature in San Juan in September is a warm 27°C (81°F) with low heat & humidity. The average night-time temperature is usually a comfortable 19°C (66°F). There are usually 8 hours of bright sunshine each day, which represents 64% of the 12 hours of daylight.

Expect 48mm (1.9 inches) of rainfall across the whole of September with 7 days with some rain falling. Maximum UV levels will be high (6 UV index) at midday when the skies are clear.

The average sea temperature in and around San Juan in September is 25°C (77°F).

San Juan sunrise & sunset times for September 2018

Browse the sunrise & sunset times for San Juan in September 2018. Select a month to view San Juan sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st September 2018 07:22 20:25
Sunday, 2nd September 2018 07:23 20:23
Monday, 3rd September 2018 07:24 20:22
Tuesday, 4th September 2018 07:25 20:20
Wednesday, 5th September 2018 07:26 20:19
Thursday, 6th September 2018 07:27 20:17
Friday, 7th September 2018 07:28 20:15
Saturday, 8th September 2018 07:29 20:14
Sunday, 9th September 2018 07:30 20:12
Monday, 10th September 2018 07:31 20:11
Tuesday, 11th September 2018 07:31 20:09
Wednesday, 12th September 2018 07:32 20:07
Thursday, 13th September 2018 07:33 20:06
Friday, 14th September 2018 07:34 20:04
Saturday, 15th September 2018 07:35 20:03
Sunday, 16th September 2018 07:36 20:01
Monday, 17th September 2018 07:37 19:59
Tuesday, 18th September 2018 07:38 19:58
Wednesday, 19th September 2018 07:39 19:56
Thursday, 20th September 2018 07:40 19:55
Friday, 21st September 2018 07:41 19:53
Saturday, 22nd September 2018 07:41 19:51
Sunday, 23rd September 2018 07:42 19:50
Monday, 24th September 2018 07:43 19:48
Tuesday, 25th September 2018 07:44 19:46
Wednesday, 26th September 2018 07:45 19:45
Thursday, 27th September 2018 07:46 19:43
Friday, 28th September 2018 07:47 19:42
Saturday, 29th September 2018 07:48 19:40
Sunday, 30th September 2018 07:49 19:38
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  • Book online with First Choice to receive discount
  • FREE kids places & low deposits also available

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