Niagara-on-the-Lake weather in April
In April, Niagara-on-the-Lake sees average daytime highs of 9°C and overnight lows near 4°C, with 96 mm of precipitation across 11.6 wet days and about 13.2 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.
Highs climb over the month, from about 6°C in the first days to 11°C by the end. The sky is clear or mostly clear about 26% of the time in April, and the air most often feels dry.
Daylight stretches from about 12 h 24 min at the start of April to 13 h 48 min by month's end. Set against the rest of the year, April is Niagara-on-the-Lake's 7th-clearest and 7th-windiest month. For the whole year in context, see Niagara-on-the-Lake's year-round climate.
- Daytime high
- 9°
- 7th warmest
- Overnight low
- 4°
- 5th coldest
- Precipitation
- 96 mm
- 11.6 wet days
- Daylight
- 13 h 12 min
- 5:41 AM – 6:52 PM
- Cloud cover
- 65%
- 7th clearest
- Wind
- 17 km/h
- 7th windiest
- Solar energy
- 4.89 kWh/m²
- Travel score
- 1.6
- out of 10
Niagara-on-the-Lake is town in Niagara Region, Ontario, Canada.
- Density
- 132/km²
- people per km²
- Founded
- 1781
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Highs climb over the month, from about 6°C in the first days to 11°C by the end.
A typical April day in Niagara-on-the-Lake reaches about 9°C in the afternoon and slips back to 4°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 14°C. Set against its neighbours, April runs about 5°C warmer than March and about 6°C cooler than May.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 |
| Avg low (°C) | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 6 | 1 |
| 2 | 6 | 1 |
| 3 | 6 | 1 |
| 4 | 7 | 1 |
| 5 | 7 | 2 |
| 6 | 7 | 2 |
| 7 | 7 | 2 |
| 8 | 7 | 2 |
| 9 | 8 | 2 |
| 10 | 8 | 3 |
| 11 | 8 | 3 |
| 12 | 8 | 3 |
| 13 | 8 | 3 |
| 14 | 9 | 3 |
| 15 | 9 | 3 |
| 16 | 9 | 4 |
| 17 | 9 | 4 |
| 18 | 9 | 4 |
| 19 | 9 | 4 |
| 20 | 10 | 4 |
| 21 | 10 | 5 |
| 22 | 10 | 5 |
| 23 | 10 | 5 |
| 24 | 10 | 5 |
| 25 | 10 | 5 |
| 26 | 11 | 5 |
| 27 | 11 | 6 |
| 28 | 11 | 6 |
| 29 | 11 | 6 |
| 30 | 11 | 6 |
How April really feels in Niagara-on-the-Lake
Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 16 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in April is cold — wind chill drags the overnight "feels like" below the raw low.
Niagara-on-the-Lake weather by month
How April compares with the rest of the year at a glance. April is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 0° / -5° | 77 | 13.2 | 11.3 | 9.2 | 0.0 |
| Feb | -0° / -6° | 60 | 9.8 | 7.8 | 10.2 | 0.0 |
| Mar | 3° / -2° | 73 | 10.5 | 4.9 | 11.6 | 0.0 |
| Apr | 9° / 4° | 96 | 11.6 | 1.7 | 13.2 | 1.6 |
| May | 14° / 9° | 82 | 11.5 | 0 | 14.5 | 4.2 |
| Jun | 21° / 16° | 92 | 10.9 | 0 | 15.1 | 6.3 |
| Jul | 24° / 20° | 92 | 10.5 | 0 | 14.9 | 7.0 |
| Aug | 24° / 19° | 79 | 10.2 | 0 | 13.8 | 7.1 |
| Sep | 21° / 16° | 89 | 10 | 0 | 12.3 | 6.5 |
| Oct | 14° / 10° | 94 | 12.7 | 0.1 | 10.8 | 4.0 |
| Nov | 8° / 4° | 84 | 12.2 | 2.6 | 9.5 | 1.3 |
| Dec | 3° / -1° | 81 | 13.2 | 8.4 | 8.9 | 0.0 |
Cloud cover in April
The sky is clear or mostly clear about 26% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to open up as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 37 | 37 | 37 | 37 | 37 | 36 | 37 | 37 | 37 | 38 | 37 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 40 | 40 | 41 | 41 | 41 | 41 | 42 | 42 | 43 | 43 | 43 | 44 |
| Cloudier (%) | 63 | 63 | 63 | 63 | 63 | 64 | 63 | 63 | 63 | 62 | 63 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 60 | 60 | 59 | 59 | 59 | 59 | 58 | 58 | 57 | 57 | 57 | 56 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 37 | 63 |
| 2 | 37 | 63 |
| 3 | 37 | 63 |
| 4 | 37 | 63 |
| 5 | 37 | 63 |
| 6 | 36 | 64 |
| 7 | 37 | 63 |
| 8 | 37 | 63 |
| 9 | 37 | 63 |
| 10 | 38 | 62 |
| 11 | 37 | 63 |
| 12 | 38 | 62 |
| 13 | 38 | 62 |
| 14 | 38 | 62 |
| 15 | 39 | 61 |
| 16 | 39 | 61 |
| 17 | 39 | 61 |
| 18 | 39 | 61 |
| 19 | 40 | 60 |
| 20 | 40 | 60 |
| 21 | 41 | 59 |
| 22 | 41 | 59 |
| 23 | 41 | 59 |
| 24 | 41 | 59 |
| 25 | 42 | 58 |
| 26 | 42 | 58 |
| 27 | 43 | 57 |
| 28 | 43 | 57 |
| 29 | 43 | 57 |
| 30 | 44 | 56 |
Chance of precipitation in April
Niagara-on-the-Lake gets around 96 mm of rain and snow over 11.6 wet days in April, the wettest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 38% and peaks near 40% on the wettest days, and about 2 days bring snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 39 | 39 | 40 | 40 | 40 | 40 | 39 | 39 | 39 | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 |
| Snow chance (%) | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 8 | 7 | 6 | 6 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 39 | 12 |
| 2 | 39 | 12 |
| 3 | 40 | 12 |
| 4 | 40 | 11 |
| 5 | 40 | 11 |
| 6 | 40 | 11 |
| 7 | 39 | 10 |
| 8 | 39 | 10 |
| 9 | 39 | 9 |
| 10 | 38 | 9 |
| 11 | 38 | 8 |
| 12 | 37 | 7 |
| 13 | 37 | 6 |
| 14 | 37 | 6 |
| 15 | 37 | 5 |
| 16 | 37 | 4 |
| 17 | 37 | 4 |
| 18 | 37 | 3 |
| 19 | 37 | 3 |
| 20 | 37 | 2 |
| 21 | 37 | 2 |
| 22 | 38 | 2 |
| 23 | 38 | 2 |
| 24 | 38 | 1 |
| 25 | 38 | 1 |
| 26 | 38 | 1 |
| 27 | 38 | 1 |
| 28 | 38 | 1 |
| 29 | 38 | 1 |
| 30 | 38 | 0 |
Humidity in April
Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 99 | 99 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 100 | 0 |
| 2 | 100 | 0 |
| 3 | 100 | 0 |
| 4 | 100 | 0 |
| 5 | 100 | 0 |
| 6 | 100 | 0 |
| 7 | 100 | 0 |
| 8 | 100 | 0 |
| 9 | 100 | 0 |
| 10 | 100 | 0 |
| 11 | 100 | 0 |
| 12 | 100 | 0 |
| 13 | 100 | 0 |
| 14 | 100 | 0 |
| 15 | 100 | 0 |
| 16 | 100 | 0 |
| 17 | 100 | 0 |
| 18 | 100 | 0 |
| 19 | 100 | 0 |
| 20 | 100 | 0 |
| 21 | 100 | 0 |
| 22 | 100 | 0 |
| 23 | 100 | 0 |
| 24 | 100 | 0 |
| 25 | 100 | 0 |
| 26 | 100 | 0 |
| 27 | 100 | 0 |
| 28 | 99 | 1 |
| 29 | 99 | 1 |
| 30 | 99 | 1 |
Wind in April
Winds average 17 km/h in April.
Across April, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 17 | light breeze |
| 2 | 17 | light breeze |
| 3 | 17 | light breeze |
| 4 | 17 | light breeze |
| 5 | 17 | light breeze |
| 6 | 17 | light breeze |
| 7 | 17 | light breeze |
| 8 | 17 | light breeze |
| 9 | 17 | light breeze |
| 10 | 17 | light breeze |
| 11 | 17 | light breeze |
| 12 | 17 | light breeze |
| 13 | 17 | light breeze |
| 14 | 17 | light breeze |
| 15 | 17 | light breeze |
| 16 | 17 | light breeze |
| 17 | 17 | light breeze |
| 18 | 17 | light breeze |
| 19 | 16 | light breeze |
| 20 | 16 | light breeze |
| 21 | 16 | light breeze |
| 22 | 16 | light breeze |
| 23 | 16 | light breeze |
| 24 | 16 | light breeze |
| 25 | 16 | light breeze |
| 26 | 16 | light breeze |
| 27 | 15 | light breeze |
| 28 | 15 | light breeze |
| 29 | 15 | light breeze |
| 30 | 15 | light breeze |
Sunrise & sunset in April
Daylight runs from about 12 h 24 min at the start of April to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 84 minutes over April. Sunrise moves from 6:08 AM to 5:19 AM, and sunset from 6:34 PM to 7:09 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.4 | 12.5 | 12.5 | 12.6 | 12.6 | 12.7 | 12.7 | 12.8 | 12.8 | 12.9 | 12.9 | 13.0 | 13.0 | 13.1 | 13.1 | 13.2 | 13.2 | 13.3 | 13.3 | 13.4 | 13.4 | 13.5 | 13.5 | 13.6 | 13.6 | 13.7 | 13.7 | 13.7 | 13.8 | 13.8 |
| Sunrise (AM) | 6:08 | 6:06 | 6:04 | 6:02 | 6:00 | 5:59 | 5:57 | 5:55 | 5:53 | 5:51 | 5:50 | 5:48 | 5:46 | 5:44 | 5:43 | 5:41 | 5:39 | 5:38 | 5:36 | 5:34 | 5:33 | 5:31 | 5:29 | 5:28 | 5:26 | 5:25 | 5:23 | 5:22 | 5:20 | 5:19 |
| Sunset (PM) | 6:34 | 6:35 | 6:37 | 6:38 | 6:39 | 6:40 | 6:41 | 6:43 | 6:44 | 6:45 | 6:46 | 6:47 | 6:49 | 6:50 | 6:51 | 6:52 | 6:53 | 6:54 | 6:56 | 6:57 | 6:58 | 6:59 | 7:00 | 7:02 | 7:03 | 7:04 | 7:05 | 7:06 | 7:08 | 7:09 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.4 | 6:08 | 6:34 |
| 2 | 12.5 | 6:06 | 6:35 |
| 3 | 12.5 | 6:04 | 6:37 |
| 4 | 12.6 | 6:02 | 6:38 |
| 5 | 12.6 | 6:00 | 6:39 |
| 6 | 12.7 | 5:59 | 6:40 |
| 7 | 12.7 | 5:57 | 6:41 |
| 8 | 12.8 | 5:55 | 6:43 |
| 9 | 12.8 | 5:53 | 6:44 |
| 10 | 12.9 | 5:51 | 6:45 |
| 11 | 12.9 | 5:50 | 6:46 |
| 12 | 13.0 | 5:48 | 6:47 |
| 13 | 13.0 | 5:46 | 6:49 |
| 14 | 13.1 | 5:44 | 6:50 |
| 15 | 13.1 | 5:43 | 6:51 |
| 16 | 13.2 | 5:41 | 6:52 |
| 17 | 13.2 | 5:39 | 6:53 |
| 18 | 13.3 | 5:38 | 6:54 |
| 19 | 13.3 | 5:36 | 6:56 |
| 20 | 13.4 | 5:34 | 6:57 |
| 21 | 13.4 | 5:33 | 6:58 |
| 22 | 13.5 | 5:31 | 6:59 |
| 23 | 13.5 | 5:29 | 7:00 |
| 24 | 13.6 | 5:28 | 7:02 |
| 25 | 13.6 | 5:26 | 7:03 |
| 26 | 13.7 | 5:25 | 7:04 |
| 27 | 13.7 | 5:23 | 7:05 |
| 28 | 13.7 | 5:22 | 7:06 |
| 29 | 13.8 | 5:20 | 7:08 |
| 30 | 13.8 | 5:19 | 7:09 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 4.89 kWh/m².
For context, solar energy here swings from a low near 1.28 kWh/m² to a high of 6.35 kWh/m² in June across the year — April's 4.89 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.4 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.6 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 | 5.5 | 5.5 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.4 | Bright |
| 2 | 4.4 | Bright |
| 3 | 4.4 | Bright |
| 4 | 4.5 | Bright |
| 5 | 4.5 | Bright |
| 6 | 4.5 | Bright |
| 7 | 4.6 | Bright |
| 8 | 4.6 | Bright |
| 9 | 4.6 | Bright |
| 10 | 4.7 | Bright |
| 11 | 4.7 | Bright |
| 12 | 4.8 | Bright |
| 13 | 4.8 | Bright |
| 14 | 4.8 | Bright |
| 15 | 4.9 | Bright |
| 16 | 4.9 | Bright |
| 17 | 5.0 | Bright |
| 18 | 5.0 | Bright |
| 19 | 5.0 | Bright |
| 20 | 5.1 | Bright |
| 21 | 5.1 | Bright |
| 22 | 5.2 | Bright |
| 23 | 5.2 | Bright |
| 24 | 5.3 | Bright |
| 25 | 5.3 | Bright |
| 26 | 5.3 | Bright |
| 27 | 5.4 | Bright |
| 28 | 5.4 | Bright |
| 29 | 5.5 | Bright |
| 30 | 5.5 | Bright |
Is April a good time to visit Niagara-on-the-Lake?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a weaker month for outdoor sightseeing in Niagara-on-the-Lake.
What to pack for Niagara-on-the-Lake in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Niagara-on-the-Lake sees daytime highs around 9°C and nights near 4°C. Pack a warm layer. Worth having: rain gear and sun protection. About 12 days see rain.
Sea temperature near Niagara-on-the-Lake in April
The nearest coast averages about 4°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 km away) is warmest in August at about 22°C and coldest in February near 3°C.
It's comfortable for a long swim from Jul 17 to Sep 6 — about 1.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 4 | 3 | 3 | 4 | 7 | 15 | 20 | 22 | 19 | 13 | 8 | 5 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Refreshing | Refreshing | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 4 | Bracing |
| Feb | 3 | Bracing |
| Mar | 3 | Bracing |
| Apr | 4 | Bracing |
| May | 7 | Bracing |
| Jun | 15 | Bracing |
| Jul | 20 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 19 | Cool |
| Oct | 13 | Bracing |
| Nov | 8 | Bracing |
| Dec | 5 | Bracing |
UV index in Niagara-on-the-Lake in April
Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Niagara-on-the-Lake peaks around June 19 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 5 | 6 | 8 | 7 | 6 | 5 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | High | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 7 | Very high |
| Aug | 6 | High |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Niagara-on-the-Lake in April
Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.
Air quality in Niagara-on-the-Lake is worst in May — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 14 | 17 | 18 | 21 | 20 | 20 | 17 | 16 | 11 | 10 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 14 | Moderate |
| Mar | 17 | Moderate |
| Apr | 18 | Moderate |
| May | 21 | Moderate |
| Jun | 20 | Moderate |
| Jul | 20 | Moderate |
| Aug | 17 | Moderate |
| Sep | 16 | Moderate |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Niagara-on-the-Lake?
Niagara-on-the-Lake sits at 43.3°N, 79.1°W, 85 m above sea level, in Canada. The nearest listed city is St. Catharines, 16 km away.
Topography around Niagara-on-the-Lake
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Niagara-on-the-Lake.
Within 3 km, the terrain around Niagara-on-the-Lake has only modest variations in elevation — a maximum elevation change of 40 m around an average of 82 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 146 m; within 80 km, significant variations in elevation — a maximum elevation change of 540 m.
The land around Niagara-on-the-Lake is covered by water (47%) within 3 km, water (52%) within 16 km, and water (42%) and trees (24%) within 80 km.
Canada travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 83% of US
- price level, 2025
- GDP per capita
- $55,698
- 2025
- Happiness
- 6.7 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 2
- per 100k, 2023
- Road deaths
- 5.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Niagara-on-the-Lake (43.2565°, -79.0853°, elevation 85 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).