Weather in Agana in September 2018

Expect 31°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Agana in September. Check more long-term weather averages for Agana in September before you book your next holiday to Guam in 2018.

Key weather averages for Agana in September

  • 31°C maximum daytime temperature in September in Agana31
    31°C max day temperature
  • 5 hours of sunshine per day (38% of daylight hours) in September in Agana5
    5 hours of sunshine per day
  • 19 days with some rainfall in September in Agana19
    19 days with some rainfall
  • 25°C minimum night-time temperature in September in Agana25
    25°C min night temperature
  • 12 hours of daylight per day in September in Agana12
    12 hours of daylight per day
  • Very high heat & humidity in September in AganaVH
    Very High heat & humidity
  • 343 mm monthly rainfall in September in Agana343
    343 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Agana11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Agana29
    29°C sea temperature

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All months

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

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Guide to Agana weather in September

The average maximum daytime temperature in Agana in September is a hot 31°C (88°F) with very high heat & humidity. The average night-time temperature is usually a warm 25°C (77°F). There are usually 5 hours of bright sunshine each day, which represents 38% of the 12 hours of daylight.

Expect 343mm (13.5 inches) of rainfall across the whole of September with 19 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.

The average sea temperature in and around Agana in September is 29°C (84°F).

The weather in Agana in September is represented by Agana.

Agana sunrise & sunset times for September 2018

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st September 2018 06:10 18:32
Sunday, 2nd September 2018 06:10 18:32
Monday, 3rd September 2018 06:10 18:31
Tuesday, 4th September 2018 06:10 18:30
Wednesday, 5th September 2018 06:10 18:30
Thursday, 6th September 2018 06:10 18:29
Friday, 7th September 2018 06:10 18:28
Saturday, 8th September 2018 06:10 18:28
Sunday, 9th September 2018 06:10 18:27
Monday, 10th September 2018 06:10 18:26
Tuesday, 11th September 2018 06:10 18:25
Wednesday, 12th September 2018 06:10 18:25
Thursday, 13th September 2018 06:10 18:24
Friday, 14th September 2018 06:10 18:23
Saturday, 15th September 2018 06:10 18:23
Sunday, 16th September 2018 06:10 18:22
Monday, 17th September 2018 06:10 18:21
Tuesday, 18th September 2018 06:10 18:20
Wednesday, 19th September 2018 06:10 18:20
Thursday, 20th September 2018 06:10 18:19
Friday, 21st September 2018 06:10 18:18
Saturday, 22nd September 2018 06:10 18:17
Sunday, 23rd September 2018 06:10 18:17
Monday, 24th September 2018 06:10 18:16
Tuesday, 25th September 2018 06:10 18:15
Wednesday, 26th September 2018 06:10 18:15
Thursday, 27th September 2018 06:10 18:14
Friday, 28th September 2018 06:10 18:13
Saturday, 29th September 2018 06:10 18:12
Sunday, 30th September 2018 06:10 18:12
  • Save up to 40% off hotels in the Hotels.com autumn sale
  • Offers on hotel bookings to worldwide destinations
  • Travel before 3rd December 2017 (inclusive)

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Agana weather by month

Check Agana weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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