Thunder Bay District
May
Weather in Thunder Bay District for May 2025
Your guide to Thunder Bay District weather in May - trends and predictions
In general, the average temperature in Thunder Bay District at the beginning of May is 7.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 16.4 °C by the end of May.
Thunder Bay District sees moderate rainfall in May, averaging 6 rainy days.
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25
Dry days
6
Rainy days
0
Snow days
15°/4°
Temperatures
18 km/h
Avg max wind
75 %
Avg humidity
Thunder Bay District in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  5° | 2 5° | 3  10° | 4  8° | |||
| 5 9° | 6 9° | 7  8° | 8 10° | 9  13° | 10 13° | 11  16° |
| 12 17° | 13  13° | 14 14° | 15 17° | 16 12° | 17 12° | 18 12° |
| 19 16° | 20 16° | 21 13° | 22 11° | 23 15° | 24 8° | 25 14° |
| 26 15° | 27 20° | 28 16° | 29 16° | 30 17° | 31 17° |
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Temperatures trend during May in Thunder Bay District
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Light freezing rain | 5° /1° | 7.5 mm | 2 | |
| 2 May | Light freezing rain | 5° /0° | 2.5 mm | 2 | |
| 3 May | Patchy rain possible | 10° /2° | 1.4 mm | 3 | |
| 4 May | Overcast | 8° /3° | 3.8 mm | 2 | |
| 5 May | Overcast | 9° /3° | 0 mm | 3 | |
| 6 May | Patchy rain possible | 9° /4° | 1.1 mm | 3 | |
| 7 May | Moderate or heavy rain shower | 8° /4° | 3.4 mm | 2 | |
| 8 May | Overcast | 10° /5° | 0 mm | 3 | |
| 9 May | Sunny | 13° /3° | 0 mm | 4 | |
| 10 May | Overcast | 13° /4° | 1.2 mm | 3 | |
| 11 May | Heavy rain at times | 16° /5° | 0.6 mm | 4 | |
| 12 May | Overcast | 17° /7° | 0.2 mm | 4 | |
| 13 May | Partly cloudy | 13° /6° | 0 mm | 4 | |
| 14 May | Partly cloudy | 14° /4° | 0 mm | 5 | |
| 15 May | Sunny | 17° /6° | 0 mm | 5 | |
| 16 May | Overcast | 12° /5° | 5.7 mm | 3 | |
| 17 May | Partly cloudy | 12° /4° | 0.1 mm | 3 | |
| 18 May | Moderate or heavy rain shower | 12° /4° | 3.4 mm | 3 | |
| 19 May | Heavy rain at times | 16° /6° | 4.4 mm | 4 | |
| 20 May | Sunny | 16° /6° | 4.5 mm | 5 | |
| 21 May | Patchy rain possible | 13° /6° | 9.6 mm | 3 | |
| 22 May | Partly cloudy | 11° /5° | 4.8 mm | 3 | |
| 23 May | Moderate or heavy rain shower | 15° /5° | 5.9 mm | 4 | |
| 24 May | Partly cloudy | 8° /2° | 9 mm | 3 | |
| 25 May | Sunny | 14° /3° | 4.8 mm | 4 | |
| 26 May | Sunny | 15° /5° | 2.2 mm | 5 | |
| 27 May | Sunny | 20° /7° | 0 mm | 5 | |
| 28 May | Partly cloudy | 16° /8° | 0.4 mm | 5 | |
| 29 May | Overcast | 16° /6° | 0 mm | 4 | |
| 30 May | Sunny | 17° /6° | 0 mm | 5 | |
| 31 May | Patchy rain possible | 17° /8° | 3 mm | 4 | |
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Important Notice
Our weather forecast for Thunder Bay District in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Thunder Bay District forecast closer to your planned date for the most up-to-date weather information.
Thunder Bay District in May - FAQ
What are the expected maximum and minimum temperatures in Thunder Bay District during May?
Prepare for cooler days with highs just around 15° and colder nights, dipping below 4°.
How much rainfall should be expected in Thunder Bay District during May?
Significant rainfall exceeding 138.1 mm is expected in Thunder Bay District during May, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Thunder Bay District during May?
The average wind speed in Thunder Bay District during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
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Where is Thunder Bay District?Get accurate weather forecasts for Thunder Bay District, located at latitude 48.382 and longitude -89.25. Stay updated with localized weather information tailored for Thunder Bay District.
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