Monthly climate averages for Newton, Canada. Based on 10-year ERA5 reanalysis data.
Cfb Oceanic
Climate OverviewNewton, Canada in June has warm conditions, with highs averaging 20.9°C (70°F). Rain falls on about 13 days this month. Sea temperature stays cool at 17.1°C (63°F).
This month falls at the beginning of Summer.
Daily highs in June gradually rise from around 20°C (68°F) at the start to 24°C (75°F) by month's end.
Rainfall is heaviest during the first third of the month, while the last third tends to be drier.
The warmest days tend to fall around the 27th, averaging 24.2°C (76°F).
Compared to May, this month is about 2°C warmer with 1 more rainy days. Temperatures will rise further into July.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 21°C (70°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.
Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.
1 of the last 5 yearly records were warmer than this month's long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 6°C / 0°C | 4°C / -3°C | 19days (344 mm) Wet | 3.7h Poor | 86% Very Muggy | 1.1 Low | Wet | View Details |
| February | 6°C / 0°C | 4°C / -4°C | 18days (215 mm) Wet | 5.2h Fair | 79% Humid | 1.9 Low | Wet | View Details |
| March | 10°C / 2°C | 8°C / -1°C | 19days (250 mm) Wet | 7h Good | 81% Humid | 3 Moderate | Wet | View Details |
| April | 14°C / 4°C | 12°C / 2°C | 17days (191 mm) Wet | 9h Good | 77% Humid | 4.7 Moderate | Wet | View Details |
| May | 19°C / 8°C | 18°C / 7°C | 12days (116 mm) Wet | 10.9h Excellent | 74% Muggy | 5.6 High | Good | View Details |
| June best | 21°C / 11°C | 21°C / 10°C | 13days (109 mm) Wet | 11.7h Excellent | 73% Muggy | 6.2 High | Excellent | View Details |
| July best | 25°C / 14°C | 25°C / 14°C | 6days (44 mm) Good | 13h Excellent | 68% Muggy | 6.7 High | Excellent | View Details |
| August best | 25°C / 14°C | 26°C / 15°C | 7days (53 mm) Good | 11.7h Excellent | 70% Muggy | 5.7 High | Excellent | View Details |
| September best | 21°C / 12°C | 21°C / 11°C | 12days (172 mm) Wet | 9h Good | 79% Humid | 4.3 Moderate | Excellent | View Details |
| October | 14°C / 7°C | 13°C / 5°C | 18days (298 mm) Wet | 6.1h Fair | 85% Humid | 2.5 Moderate | Wet | View Details |
| November | 9°C / 4°C | 7°C / 1°C | 20days (397 mm) Wet | 3.9h Poor | 87% Very Muggy | 1.3 Low | Wet | View Details |
| December | 5°C / 0°C | 3°C / -3°C | 21days (348 mm) Wet | 3h Poor | 87% Very Muggy | 0.8 Low | Wet | View Details |
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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