Thunder Bay weather in April 2020

  • 8°C maximum daytime temperature in April in Thunder Bay8
    8°C max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in April in Thunder Bay9
    9 days with some rainfall
  • -3°C minimum night-time temperature in April in Thunder Bay-3
    -3°C min night temperature
  • 14 hours of daylight per day in April in Thunder Bay14
    14 hours of daylight per day
  • No heat & humidity in April in Thunder Bay0
    No heat & humidity
  • 45 mm monthly rainfall in April in Thunder Bay45
    45 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in April in Thunder Bay4
    4 (Moderate) UV index
  • 2°C sea temperature in April in Thunder Bay2
    2°C sea temperature

Going to Thunder Bay? Find the best month to visit Thunder Bay based on the weather.

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Expect 8°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Thunder Bay in April. Check more long-term weather averages for Thunder Bay in April before you book your next holiday to Ontario in 2020/2021.

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More about Thunder Bay

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

The April weather guide for Thunder Bay, Ontario shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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

Guide to Thunder Bay weather in April

The average maximum daytime temperature in Thunder Bay in April is a cool 8°C (46°F). The average night-time temperature is usually a very cold -3°C (27°F). There are usually 7 hours of bright sunshine each day, which represents 54% of the 14 hours of daylight.

Expect 45mm (1.8 inches) of rainfall across the whole of April with 9 days with some rain falling. Maximum UV levels will be moderate (4 UV index) at midday when the skies are clear.

The average sea temperature in and around Thunder Bay in April is 2°C (36°F).

Thunder Bay sunrise & sunset times for April 2020

Browse the sunrise & sunset times for Thunder Bay in April 2020. Select a month to view Thunder Bay sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st April 2020 07:34 20:28
Thursday, 2nd April 2020 07:32 20:30
Friday, 3rd April 2020 07:30 20:31
Saturday, 4th April 2020 07:28 20:33
Sunday, 5th April 2020 07:26 20:34
Monday, 6th April 2020 07:24 20:36
Tuesday, 7th April 2020 07:22 20:37
Wednesday, 8th April 2020 07:19 20:39
Thursday, 9th April 2020 07:17 20:40
Friday, 10th April 2020 07:15 20:42
Saturday, 11th April 2020 07:13 20:43
Sunday, 12th April 2020 07:12 20:45
Monday, 13th April 2020 07:10 20:46
Tuesday, 14th April 2020 07:08 20:48
Wednesday, 15th April 2020 07:06 20:49
Thursday, 16th April 2020 07:04 20:50
Friday, 17th April 2020 07:02 20:52
Saturday, 18th April 2020 07:00 20:53
Sunday, 19th April 2020 06:58 20:55
Monday, 20th April 2020 06:56 20:56
Tuesday, 21st April 2020 06:54 20:58
Wednesday, 22nd April 2020 06:52 20:59
Thursday, 23rd April 2020 06:51 21:01
Friday, 24th April 2020 06:49 21:02
Saturday, 25th April 2020 06:47 21:04
Sunday, 26th April 2020 06:45 21:05
Monday, 27th April 2020 06:44 21:06
Tuesday, 28th April 2020 06:42 21:08
Wednesday, 29th April 2020 06:40 21:09
Thursday, 30th April 2020 06:38 21:11
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