Mount Olive-Silverstone-Jamestown weather in September
In September, Mount Olive-Silverstone-Jamestown sees average daytime highs of 21°C and overnight lows near 12°C, with 69 mm of rain across 8.7 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.
Highs ease over the month, from about 24°C in the first days to 19°C by the end. The sky is clear or mostly clear about 33% of the time in September, and the air most often feels dry.
Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Mount Olive-Silverstone-Jamestown's 3rd-clearest and 8th-windiest month. For the whole year in context, see Mount Olive-Silverstone-Jamestown's year-round climate.
- Daytime high
- 21°
- 4th warmest
- Overnight low
- 12°
- 9th coldest
- Rainfall
- 69 mm
- 8.7 wet days
- Daylight
- 12 h 18 min
- 6:04 AM – 6:22 PM
- Cloud cover
- 56%
- 3rd clearest
- Wind
- 12 km/h
- 8th windiest
- Solar energy
- 4.13 kWh/m²
- Travel score
- 6.7
- out of 10
Temperature in September
Highs ease over the month, from about 24°C in the first days to 19°C by the end.
A typical September day in Mount Olive-Silverstone-Jamestown reaches about 21°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 27°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.
| 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) | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 18 | 18 |
| Avg low (°C) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 24 | 14 |
| 2 | 24 | 14 |
| 3 | 24 | 14 |
| 4 | 24 | 14 |
| 5 | 23 | 14 |
| 6 | 23 | 14 |
| 7 | 23 | 14 |
| 8 | 23 | 13 |
| 9 | 23 | 13 |
| 10 | 23 | 13 |
| 11 | 22 | 13 |
| 12 | 22 | 13 |
| 13 | 22 | 12 |
| 14 | 22 | 12 |
| 15 | 22 | 12 |
| 16 | 21 | 12 |
| 17 | 21 | 12 |
| 18 | 21 | 11 |
| 19 | 21 | 11 |
| 20 | 21 | 11 |
| 21 | 20 | 11 |
| 22 | 20 | 11 |
| 23 | 20 | 10 |
| 24 | 20 | 10 |
| 25 | 19 | 10 |
| 26 | 19 | 10 |
| 27 | 19 | 10 |
| 28 | 19 | 9 |
| 29 | 18 | 9 |
| 30 | 18 | 9 |
How September really feels in Mount Olive-Silverstone-Jamestown
Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Mount Olive-Silverstone-Jamestown weather by month
How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -1° / -8° | 60 | 10.2 | 7.2 | 9.1 | 0.0 |
| Feb | -0° / -8° | 49 | 7.8 | 6.1 | 10.2 | 0.0 |
| Mar | 4° / -4° | 57 | 9.5 | 4.5 | 11.6 | 0.3 |
| Apr | 11° / 2° | 77 | 10.7 | 1.8 | 13.2 | 2.7 |
| May | 18° / 8° | 72 | 10.1 | 0 | 14.5 | 5.5 |
| Jun | 23° / 13° | 77 | 10.6 | 0 | 15.2 | 6.7 |
| Jul | 26° / 16° | 71 | 9.7 | 0 | 14.9 | 6.8 |
| Aug | 25° / 16° | 66 | 8.8 | 0 | 13.8 | 7.1 |
| Sep | 21° / 12° | 69 | 8.7 | 0 | 12.3 | 6.7 |
| Oct | 14° / 6° | 75 | 10.5 | 0.1 | 10.8 | 4.1 |
| Nov | 7° / 0° | 67 | 10 | 2.5 | 9.5 | 1.0 |
| Dec | 2° / -4° | 61 | 10 | 5.8 | 8.8 | 0.0 |
Cloud cover in September
The sky is clear or mostly clear about 33% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to cloud over 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 (%) | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 54 | 54 | 53 | 53 | 52 | 52 | 52 | 52 | 52 | 51 | 51 | 51 | 50 | 50 | 49 | 48 | 48 | 47 | 47 | 48 | 47 | 46 | 46 |
| Cloudier (%) | 44 | 44 | 44 | 44 | 45 | 45 | 45 | 46 | 46 | 47 | 47 | 48 | 48 | 48 | 48 | 48 | 49 | 49 | 49 | 50 | 50 | 51 | 52 | 52 | 53 | 53 | 52 | 53 | 54 | 54 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 56 | 44 |
| 2 | 56 | 44 |
| 3 | 56 | 44 |
| 4 | 56 | 44 |
| 5 | 55 | 45 |
| 6 | 55 | 45 |
| 7 | 55 | 45 |
| 8 | 54 | 46 |
| 9 | 54 | 46 |
| 10 | 53 | 47 |
| 11 | 53 | 47 |
| 12 | 52 | 48 |
| 13 | 52 | 48 |
| 14 | 52 | 48 |
| 15 | 52 | 48 |
| 16 | 52 | 48 |
| 17 | 51 | 49 |
| 18 | 51 | 49 |
| 19 | 51 | 49 |
| 20 | 50 | 50 |
| 21 | 50 | 50 |
| 22 | 49 | 51 |
| 23 | 48 | 52 |
| 24 | 48 | 52 |
| 25 | 47 | 53 |
| 26 | 47 | 53 |
| 27 | 48 | 52 |
| 28 | 47 | 53 |
| 29 | 46 | 54 |
| 30 | 46 | 54 |
Chance of precipitation in September
Mount Olive-Silverstone-Jamestown gets around 69 mm of rain over 8.7 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 29% and peaks near 35% on the wettest days. The odds climb toward the end of the month.
| 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 (%) | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 30 | 31 | 32 | 33 | 34 | 34 | 35 |
| Rain chance (%) | |
|---|---|
| 1 | 25 |
| 2 | 26 |
| 3 | 26 |
| 4 | 27 |
| 5 | 27 |
| 6 | 28 |
| 7 | 28 |
| 8 | 29 |
| 9 | 29 |
| 10 | 29 |
| 11 | 29 |
| 12 | 29 |
| 13 | 29 |
| 14 | 28 |
| 15 | 28 |
| 16 | 28 |
| 17 | 28 |
| 18 | 28 |
| 19 | 28 |
| 20 | 28 |
| 21 | 28 |
| 22 | 29 |
| 23 | 29 |
| 24 | 30 |
| 25 | 31 |
| 26 | 32 |
| 27 | 33 |
| 28 | 34 |
| 29 | 34 |
| 30 | 35 |
Humidity in September
Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the dry band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.
| 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 (%) | 33 | 35 | 36 | 38 | 40 | 41 | 43 | 45 | 46 | 48 | 50 | 51 | 52 | 55 | 56 | 57 | 58 | 60 | 60 | 62 | 64 | 64 | 66 | 68 | 68 | 71 | 72 | 73 | 75 | 76 |
| Comfortable (%) | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 18 | 18 | 17 | 16 | 16 |
| Humid (%) | 23 | 22 | 21 | 21 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 12 | 12 | 11 | 10 | 10 | 9 | 8 | 8 | 7 | 6 |
| Muggy (%) | 14 | 14 | 13 | 12 | 12 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 |
| Oppressive (%) | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 33 | 28 | 23 | 14 | 2 |
| 2 | 35 | 28 | 22 | 14 | 2 |
| 3 | 36 | 27 | 21 | 13 | 2 |
| 4 | 38 | 27 | 21 | 12 | 2 |
| 5 | 40 | 27 | 20 | 12 | 2 |
| 6 | 41 | 26 | 20 | 11 | 2 |
| 7 | 43 | 26 | 19 | 10 | 1 |
| 8 | 45 | 25 | 19 | 10 | 1 |
| 9 | 46 | 25 | 18 | 9 | 1 |
| 10 | 48 | 24 | 18 | 9 | 1 |
| 11 | 50 | 24 | 18 | 8 | 1 |
| 12 | 51 | 23 | 17 | 8 | 1 |
| 13 | 52 | 23 | 17 | 7 | 1 |
| 14 | 55 | 22 | 16 | 7 | 0 |
| 15 | 56 | 22 | 16 | 6 | 0 |
| 16 | 57 | 22 | 15 | 6 | 0 |
| 17 | 58 | 21 | 15 | 6 | 0 |
| 18 | 60 | 21 | 14 | 5 | 0 |
| 19 | 60 | 21 | 14 | 5 | 0 |
| 20 | 62 | 21 | 13 | 4 | 0 |
| 21 | 64 | 20 | 12 | 4 | 0 |
| 22 | 64 | 20 | 12 | 4 | 0 |
| 23 | 66 | 20 | 11 | 3 | 0 |
| 24 | 68 | 19 | 10 | 3 | 0 |
| 25 | 68 | 19 | 10 | 3 | 0 |
| 26 | 71 | 18 | 9 | 2 | 0 |
| 27 | 72 | 18 | 8 | 2 | 0 |
| 28 | 73 | 17 | 8 | 2 | 0 |
| 29 | 75 | 16 | 7 | 2 | 0 |
| 30 | 76 | 16 | 6 | 2 | 0 |
Wind in September
Winds average 12 km/h in September.
Across September, daily wind ranges from about 11 km/h on the calmest days to 13 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) | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | 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 | 11 | calm |
| 2 | 11 | calm |
| 3 | 12 | calm |
| 4 | 12 | calm |
| 5 | 12 | calm |
| 6 | 12 | calm |
| 7 | 12 | calm |
| 8 | 12 | calm |
| 9 | 12 | calm |
| 10 | 12 | calm |
| 11 | 12 | light breeze |
| 12 | 12 | light breeze |
| 13 | 12 | light breeze |
| 14 | 12 | light breeze |
| 15 | 12 | light breeze |
| 16 | 12 | light breeze |
| 17 | 12 | light breeze |
| 18 | 12 | light breeze |
| 19 | 12 | light breeze |
| 20 | 12 | light breeze |
| 21 | 13 | light breeze |
| 22 | 13 | light breeze |
| 23 | 13 | light breeze |
| 24 | 13 | light breeze |
| 25 | 13 | light breeze |
| 26 | 13 | light breeze |
| 27 | 13 | light breeze |
| 28 | 13 | light breeze |
| 29 | 13 | light breeze |
| 30 | 13 | light breeze |
Sunrise & sunset in September
Daylight runs from about 13 h 06 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 90 minutes over September. Sunrise moves from 5:46 AM to 6:20 AM, and sunset from 6:50 PM to 5:55 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) | 13.1 | 13.0 | 13.0 | 12.9 | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 | 11.9 | 11.9 | 11.8 | 11.8 | 11.7 | 11.7 | 11.6 | 11.6 |
| Sunrise (AM) | 5:46 | 5:48 | 5:49 | 5:50 | 5:51 | 5:52 | 5:53 | 5:54 | 5:56 | 5:57 | 5:58 | 5:59 | 6:00 | 6:01 | 6:03 | 6:04 | 6:05 | 6:06 | 6:07 | 6:08 | 6:10 | 6:11 | 6:12 | 6:13 | 6:14 | 6:16 | 6:17 | 6:18 | 6:19 | 6:20 |
| Sunset (PM) | 6:50 | 6:48 | 6:46 | 6:44 | 6:42 | 6:41 | 6:39 | 6:37 | 6:35 | 6:33 | 6:31 | 6:29 | 6:27 | 6:25 | 6:23 | 6:22 | 6:20 | 6:18 | 6:16 | 6:14 | 6:12 | 6:10 | 6:08 | 6:06 | 6:04 | 6:02 | 6:01 | 5:59 | 5:57 | 5:55 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.1 | 5:46 | 6:50 |
| 2 | 13.0 | 5:48 | 6:48 |
| 3 | 13.0 | 5:49 | 6:46 |
| 4 | 12.9 | 5:50 | 6:44 |
| 5 | 12.9 | 5:51 | 6:42 |
| 6 | 12.8 | 5:52 | 6:41 |
| 7 | 12.8 | 5:53 | 6:39 |
| 8 | 12.7 | 5:54 | 6:37 |
| 9 | 12.7 | 5:56 | 6:35 |
| 10 | 12.6 | 5:57 | 6:33 |
| 11 | 12.6 | 5:58 | 6:31 |
| 12 | 12.5 | 5:59 | 6:29 |
| 13 | 12.4 | 6:00 | 6:27 |
| 14 | 12.4 | 6:01 | 6:25 |
| 15 | 12.3 | 6:03 | 6:23 |
| 16 | 12.3 | 6:04 | 6:22 |
| 17 | 12.2 | 6:05 | 6:20 |
| 18 | 12.2 | 6:06 | 6:18 |
| 19 | 12.1 | 6:07 | 6:16 |
| 20 | 12.1 | 6:08 | 6:14 |
| 21 | 12.0 | 6:10 | 6:12 |
| 22 | 12.0 | 6:11 | 6:10 |
| 23 | 11.9 | 6:12 | 6:08 |
| 24 | 11.9 | 6:13 | 6:06 |
| 25 | 11.8 | 6:14 | 6:04 |
| 26 | 11.8 | 6:16 | 6:02 |
| 27 | 11.7 | 6:17 | 6:01 |
| 28 | 11.7 | 6:18 | 5:59 |
| 29 | 11.6 | 6:19 | 5:57 |
| 30 | 11.6 | 6:20 | 5:55 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.13 kWh/m².
For context, solar energy here swings from a low near 1.32 kWh/m² to a high of 6.28 kWh/m² in June across the year — September's 4.13 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) | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.5 | 4.5 | 4.4 | 4.4 | 4.3 | 4.3 | 4.3 | 4.2 | 4.2 | 4.2 | 4.1 | 4.1 | 4.0 | 4.0 | 3.9 | 3.9 | 3.8 | 3.8 | 3.7 | 3.7 | 3.6 | 3.6 | 3.5 | 3.5 | 3.4 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.7 | Bright |
| 2 | 4.7 | Bright |
| 3 | 4.7 | Bright |
| 4 | 4.6 | Bright |
| 5 | 4.6 | Bright |
| 6 | 4.5 | Bright |
| 7 | 4.5 | Bright |
| 8 | 4.4 | Bright |
| 9 | 4.4 | Bright |
| 10 | 4.3 | Bright |
| 11 | 4.3 | Bright |
| 12 | 4.3 | Bright |
| 13 | 4.2 | Bright |
| 14 | 4.2 | Bright |
| 15 | 4.2 | Bright |
| 16 | 4.1 | Bright |
| 17 | 4.1 | Bright |
| 18 | 4.0 | Bright |
| 19 | 4.0 | Moderate |
| 20 | 3.9 | Moderate |
| 21 | 3.9 | Moderate |
| 22 | 3.8 | Moderate |
| 23 | 3.8 | Moderate |
| 24 | 3.7 | Moderate |
| 25 | 3.7 | Moderate |
| 26 | 3.6 | Moderate |
| 27 | 3.6 | Moderate |
| 28 | 3.5 | Moderate |
| 29 | 3.5 | Moderate |
| 30 | 3.4 | Moderate |
Is September a good time to visit Mount Olive-Silverstone-Jamestown?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a reasonable time to visit Mount Olive-Silverstone-Jamestown for sightseeing.
What to pack for Mount Olive-Silverstone-Jamestown in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Mount Olive-Silverstone-Jamestown sees daytime highs around 21°C and nights near 12°C. Worth packing: rain gear. About 9 days see rain.
Sea temperature near Mount Olive-Silverstone-Jamestown in September
The nearest coast averages about 19°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 22 km away) is warmest in August at about 21°C and coldest in February near 3°C.
It's comfortable for a long swim from Jul 20 to Sep 2 — about 1.5 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 | 21 | 19 | 13 | 8 | 5 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | 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 | Cool |
| Aug | 21 | Refreshing |
| Sep | 19 | Cool |
| Oct | 13 | Bracing |
| Nov | 8 | Bracing |
| Dec | 5 | Bracing |
UV index in Mount Olive-Silverstone-Jamestown in September
Clear-sky midday UV in September 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 Mount Olive-Silverstone-Jamestown peaks around June 21 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 | 8 | 6 | 5 | 3 | 2 | 1 |
| Level | Low | Low | Moderate | High | High | Very high | Very high | High | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Mount Olive-Silverstone-Jamestown in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Mount Olive-Silverstone-Jamestown is worst in May — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 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) | 12 | 15 | 18 | 18 | 22 | 20 | 20 | 17 | 17 | 11 | 10 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 15 | Moderate |
| Mar | 18 | Moderate |
| Apr | 18 | Moderate |
| May | 22 | Moderate |
| Jun | 20 | Moderate |
| Jul | 20 | Moderate |
| Aug | 17 | Moderate |
| Sep | 17 | Moderate |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Mount Olive-Silverstone-Jamestown?
Mount Olive-Silverstone-Jamestown sits at 43.7°N, 79.6°W, 160 m above sea level, in Canada. The nearest listed city is West Humber-Clairville, 3.0 km away.
Topography around Mount Olive-Silverstone-Jamestown
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mount Olive-Silverstone-Jamestown.
Within 3 km, the terrain around Mount Olive-Silverstone-Jamestown has only modest variations in elevation — a maximum elevation change of 61 m around an average of 159 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 234 m; within 80 km, significant variations in elevation — a maximum elevation change of 527 m.
The land around Mount Olive-Silverstone-Jamestown is covered by artificial surfaces (58%) and trees (25%) within 3 km, artificial surfaces (56%) and trees (20%) within 16 km, and trees (27%), cropland (26%) and water (26%) 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 Mount Olive-Silverstone-Jamestown (43.7469°, -79.5873°, elevation 160 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).