Climate averages 1991–2020
Nepean weather
in July.
A warm, wet month: the warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Nepean: daytime highs average 25.7°C and nights cool to about 16.3°C. By daytime temperature it is the warmest month of the year.
Expect about 94 mm of rain on roughly 12 days, which makes July a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 17 min on an average July day.
The nearest other city in this atlas is Gloucester, Canada (7 km away). In July its highs average 25.6°C, about as warm as Nepean, with 94 mm of rain.
Among the 86 cities listed in Canada, Nepean ranks joint 18th of 86 for the warmest July highs and joint 65th of 86 for the driest July (rainfall, lowest first). The mean July high of those 86 cities is 24.4°C; Nepean is 1.3°C warmer than that mean.
From July to August, average highs fall by 1.1°C to 24.5°C, and monthly rainfall falls from 94 mm to 86 mm.
The annual picture
July in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Nepean climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -4.8°C-14.6°C | -14.6°C | 70 | 10.4 | 9.29 h |
| February | -3.0°C-13.4°C | -13.4°C | 57 | 8.9 | 10.410 h |
| March | 2.7°C-7.5°C | -7.5°C | 71 | 10.2 | 11.912 h |
| April | 10.7°C0.3°C | 0.3°C | 92 | 11.3 | 13.513 h |
| May | 18.4°C7.7°C | 7.7°C | 85 | 11.3 | 14.915 h |
| June | 23.3°C13.3°C | 13.3°C | 95 | 11.3 | 15.616 h |
| July, selected | 25.7°C16.3°C | 16.3°C | 94 | 11.7 | 15.315 h |
| August | 24.5°C15.7°C | 15.7°C | 86 | 10.8 | 14.114 h |
| September | 20.4°C11.8°C | 11.8°C | 90 | 9.9 | 12.613 h |
| October | 12.8°C5.4°C | 5.4°C | 97 | 11.7 | 11.011 h |
| November | 5.5°C-1.0°C | -1.0°C | 80 | 11.1 | 9.610 h |
| December | -1.1°C-8.4°C | -8.4°C | 76 | 11.5 | 8.89 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Gloucester, Canada in JulyCanada · 7 kmHigh 25.6°C · Low 16.3°C · 94 mm rain
- Ottawa in JulyCanada · 9 kmHigh 25.8°C · Low 16.5°C · 98 mm rain
- Kanata in JulyCanada · 16 kmHigh 25.7°C · Low 16.2°C · 94 mm rain
- Gatineau in JulyCanada · 16 kmHigh 25.6°C · Low 16.7°C · 98 mm rain
- Orléans, Canada in JulyCanada · 22 kmHigh 25.4°C · Low 16.3°C · 102 mm rain
- Kingston, Canada in JulyCanada · 137 kmHigh 24.9°C · Low 19.2°C · 99 mm rain
- Pierrefonds-Roxboro in JulyCanada · 148 kmHigh 25.6°C · Low 17.4°C · 87 mm rain
- Saint-Louis-de-Terrebonne in JulyCanada · 156 kmHigh 25.3°C · Low 16.8°C · 95 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Nepean) is explained once on the Nepean year overview and on the Sources, method and limits page.
Gloucester, Canada lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.