Saint-Gratien weather in October
In October, Saint-Gratien sees average daytime highs of 16°C and overnight lows near 9°C, with 62 mm of rain across 11 wet days and about 10.5 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.
Highs ease over the month, from about 18°C in the first days to 14°C by the end. The sky is clear or mostly clear about 16% of the time in October, and the air most often feels dry.
Daylight stretches from about 11 h 24 min at the start of October to 9 h 42 min by month's end. Set against the rest of the year, October is Saint-Gratien's 8th-clearest and 6th-windiest month. For the whole year in context, see Saint-Gratien's year-round climate.
- Daytime high
- 16°
- 6th warmest
- Overnight low
- 9°
- 7th coldest
- Rainfall
- 62 mm
- 11 wet days
- Daylight
- 10 h 30 min
- 7:20 AM – 5:52 PM
- Cloud cover
- 72%
- 8th clearest
- Wind
- 13 km/h
- 6th windiest
- Solar energy
- 2.05 kWh/m²
- Travel score
- 4.6
- out of 10
Temperature in October
Highs ease over the month, from about 18°C in the first days to 14°C by the end.
A typical October day in Saint-Gratien reaches about 16°C in the afternoon and slips back to 9°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 20°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 |
| Avg low (°C) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 18 | 10 |
| 2 | 18 | 10 |
| 3 | 18 | 10 |
| 4 | 18 | 10 |
| 5 | 17 | 10 |
| 6 | 17 | 10 |
| 7 | 17 | 10 |
| 8 | 17 | 9 |
| 9 | 17 | 9 |
| 10 | 17 | 9 |
| 11 | 16 | 9 |
| 12 | 16 | 9 |
| 13 | 16 | 9 |
| 14 | 16 | 9 |
| 15 | 16 | 9 |
| 16 | 16 | 9 |
| 17 | 16 | 8 |
| 18 | 15 | 8 |
| 19 | 15 | 8 |
| 20 | 15 | 8 |
| 21 | 15 | 8 |
| 22 | 15 | 8 |
| 23 | 15 | 8 |
| 24 | 14 | 8 |
| 25 | 14 | 8 |
| 26 | 14 | 7 |
| 27 | 14 | 7 |
| 28 | 14 | 7 |
| 29 | 14 | 7 |
| 30 | 13 | 7 |
| 31 | 13 | 7 |
How October really feels in Saint-Gratien
Once humidity and wind are folded in, October 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.
October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Saint-Gratien weather by month
How October compares with the rest of the year at a glance. October is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 7° / 2° | 55 | 11.7 | 0.9 | 8.5 | 0.7 |
| Feb | 8° / 2° | 49 | 10.1 | 1.2 | 9.8 | 1.2 |
| Mar | 12° / 4° | 51 | 10.3 | 0.6 | 11.6 | 2.9 |
| Apr | 15° / 6° | 51 | 10.8 | 0.1 | 13.4 | 4.4 |
| May | 18° / 9° | 64 | 11.1 | 0 | 15 | 5.6 |
| Jun | 22° / 12° | 56 | 9.9 | 0 | 15.9 | 6.4 |
| Jul | 24° / 14° | 52 | 9.2 | 0 | 15.6 | 7.0 |
| Aug | 24° / 14° | 57 | 9.4 | 0 | 14.2 | 6.9 |
| Sep | 20° / 11° | 44 | 8.6 | 0 | 12.4 | 6.4 |
| Oct | 16° / 9° | 62 | 11 | 0 | 10.5 | 4.6 |
| Nov | 10° / 5° | 59 | 11.4 | 0.3 | 8.9 | 2.2 |
| Dec | 7° / 3° | 71 | 12.6 | 0.9 | 8.1 | 0.9 |
Cloud cover in October
The sky is clear or mostly clear about 16% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 69%.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 30 | 30 | 30 | 28 | 28 | 28 | 28 | 30 | 30 | 31 | 31 | 31 | 32 | 32 | 33 | 32 | 32 | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 31 | 30 | 30 | 28 |
| Cloudier (%) | 70 | 70 | 70 | 72 | 72 | 72 | 72 | 70 | 70 | 69 | 69 | 69 | 68 | 68 | 67 | 68 | 68 | 68 | 68 | 69 | 69 | 69 | 70 | 70 | 70 | 70 | 70 | 69 | 70 | 70 | 72 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 30 | 70 |
| 2 | 30 | 70 |
| 3 | 30 | 70 |
| 4 | 28 | 72 |
| 5 | 28 | 72 |
| 6 | 28 | 72 |
| 7 | 28 | 72 |
| 8 | 30 | 70 |
| 9 | 30 | 70 |
| 10 | 31 | 69 |
| 11 | 31 | 69 |
| 12 | 31 | 69 |
| 13 | 32 | 68 |
| 14 | 32 | 68 |
| 15 | 33 | 67 |
| 16 | 32 | 68 |
| 17 | 32 | 68 |
| 18 | 32 | 68 |
| 19 | 32 | 68 |
| 20 | 31 | 69 |
| 21 | 31 | 69 |
| 22 | 31 | 69 |
| 23 | 30 | 70 |
| 24 | 30 | 70 |
| 25 | 30 | 70 |
| 26 | 30 | 70 |
| 27 | 30 | 70 |
| 28 | 31 | 69 |
| 29 | 30 | 70 |
| 30 | 30 | 70 |
| 31 | 28 | 72 |
Chance of precipitation in October
Saint-Gratien gets around 62 mm of rain over 11 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 35% and peaks near 37% on the wettest days.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 35 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 37 |
| Rain chance (%) | |
|---|---|
| 1 | 37 |
| 2 | 37 |
| 3 | 37 |
| 4 | 37 |
| 5 | 37 |
| 6 | 37 |
| 7 | 37 |
| 8 | 36 |
| 9 | 36 |
| 10 | 36 |
| 11 | 35 |
| 12 | 35 |
| 13 | 35 |
| 14 | 35 |
| 15 | 34 |
| 16 | 34 |
| 17 | 34 |
| 18 | 34 |
| 19 | 34 |
| 20 | 34 |
| 21 | 34 |
| 22 | 34 |
| 23 | 35 |
| 24 | 35 |
| 25 | 35 |
| 26 | 35 |
| 27 | 36 |
| 28 | 36 |
| 29 | 36 |
| 30 | 36 |
| 31 | 37 |
Humidity in October
Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the dry band about 86% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 76 | 77 | 78 | 78 | 79 | 80 | 81 | 82 | 82 | 83 | 83 | 84 | 85 | 86 | 86 | 86 | 87 | 87 | 88 | 88 | 89 | 89 | 90 | 90 | 91 | 91 | 92 | 93 | 93 | 94 | 94 |
| Comfortable (%) | 22 | 21 | 20 | 20 | 19 | 19 | 18 | 17 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 9 | 9 | 8 | 7 | 7 | 6 | 6 |
| Humid (%) | 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 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 76 | 22 | 2 |
| 2 | 77 | 21 | 2 |
| 3 | 78 | 20 | 2 |
| 4 | 78 | 20 | 2 |
| 5 | 79 | 19 | 2 |
| 6 | 80 | 19 | 1 |
| 7 | 81 | 18 | 1 |
| 8 | 82 | 17 | 1 |
| 9 | 82 | 17 | 1 |
| 10 | 83 | 16 | 1 |
| 11 | 83 | 16 | 1 |
| 12 | 84 | 15 | 1 |
| 13 | 85 | 15 | 0 |
| 14 | 86 | 14 | 0 |
| 15 | 86 | 14 | 0 |
| 16 | 86 | 14 | 0 |
| 17 | 87 | 13 | 0 |
| 18 | 87 | 13 | 0 |
| 19 | 88 | 12 | 0 |
| 20 | 88 | 12 | 0 |
| 21 | 89 | 11 | 0 |
| 22 | 89 | 11 | 0 |
| 23 | 90 | 10 | 0 |
| 24 | 90 | 10 | 0 |
| 25 | 91 | 9 | 0 |
| 26 | 91 | 9 | 0 |
| 27 | 92 | 8 | 0 |
| 28 | 93 | 7 | 0 |
| 29 | 93 | 7 | 0 |
| 30 | 94 | 6 | 0 |
| 31 | 94 | 6 | 0 |
Wind in October
Winds average 13 km/h in October.
Across October, daily wind ranges from about 12 km/h on the calmest days to 14 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 |
| 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 | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 12 | light breeze |
| 2 | 12 | light breeze |
| 3 | 12 | light breeze |
| 4 | 12 | light breeze |
| 5 | 12 | light breeze |
| 6 | 12 | light breeze |
| 7 | 12 | light breeze |
| 8 | 12 | light breeze |
| 9 | 13 | light breeze |
| 10 | 13 | light breeze |
| 11 | 13 | light breeze |
| 12 | 13 | light breeze |
| 13 | 13 | light breeze |
| 14 | 13 | light breeze |
| 15 | 13 | light breeze |
| 16 | 13 | light breeze |
| 17 | 13 | light breeze |
| 18 | 13 | light breeze |
| 19 | 13 | light breeze |
| 20 | 13 | 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 | 14 | light breeze |
| 28 | 14 | light breeze |
| 29 | 14 | light breeze |
| 30 | 14 | light breeze |
| 31 | 14 | light breeze |
Sunrise & sunset in October
Daylight runs from about 11 h 24 min at the start of October to 9 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 102 minutes over October. Sunrise moves from 6:57 AM to 7:44 AM, and sunset from 6:23 PM to 5:24 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.4 | 11.4 | 11.3 | 11.2 | 11.2 | 11.1 | 11.1 | 11.0 | 10.9 | 10.9 | 10.8 | 10.8 | 10.7 | 10.6 | 10.6 | 10.5 | 10.5 | 10.4 | 10.3 | 10.3 | 10.2 | 10.2 | 10.1 | 10.1 | 10.0 | 9.9 | 9.9 | 9.8 | 9.8 | 9.7 | 9.7 |
| Sunrise (AM) | 6:57 | 6:58 | 7:00 | 7:02 | 7:03 | 7:05 | 7:06 | 7:08 | 7:09 | 7:11 | 7:12 | 7:14 | 7:16 | 7:17 | 7:19 | 7:20 | 7:22 | 7:23 | 7:25 | 7:27 | 7:28 | 7:30 | 7:31 | 7:33 | 7:35 | 7:36 | 7:38 | 7:40 | 7:41 | 7:43 | 7:44 |
| Sunset (PM) | 6:23 | 6:21 | 6:18 | 6:16 | 6:14 | 6:12 | 6:10 | 6:08 | 6:06 | 6:04 | 6:02 | 6:00 | 5:57 | 5:55 | 5:53 | 5:52 | 5:50 | 5:48 | 5:46 | 5:44 | 5:42 | 5:40 | 5:38 | 5:36 | 5:35 | 5:33 | 5:31 | 5:29 | 5:28 | 5:26 | 5:24 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.4 | 6:57 | 6:23 |
| 2 | 11.4 | 6:58 | 6:21 |
| 3 | 11.3 | 7:00 | 6:18 |
| 4 | 11.2 | 7:02 | 6:16 |
| 5 | 11.2 | 7:03 | 6:14 |
| 6 | 11.1 | 7:05 | 6:12 |
| 7 | 11.1 | 7:06 | 6:10 |
| 8 | 11.0 | 7:08 | 6:08 |
| 9 | 10.9 | 7:09 | 6:06 |
| 10 | 10.9 | 7:11 | 6:04 |
| 11 | 10.8 | 7:12 | 6:02 |
| 12 | 10.8 | 7:14 | 6:00 |
| 13 | 10.7 | 7:16 | 5:57 |
| 14 | 10.6 | 7:17 | 5:55 |
| 15 | 10.6 | 7:19 | 5:53 |
| 16 | 10.5 | 7:20 | 5:52 |
| 17 | 10.5 | 7:22 | 5:50 |
| 18 | 10.4 | 7:23 | 5:48 |
| 19 | 10.3 | 7:25 | 5:46 |
| 20 | 10.3 | 7:27 | 5:44 |
| 21 | 10.2 | 7:28 | 5:42 |
| 22 | 10.2 | 7:30 | 5:40 |
| 23 | 10.1 | 7:31 | 5:38 |
| 24 | 10.1 | 7:33 | 5:36 |
| 25 | 10.0 | 7:35 | 5:35 |
| 26 | 9.9 | 7:36 | 5:33 |
| 27 | 9.9 | 7:38 | 5:31 |
| 28 | 9.8 | 7:40 | 5:29 |
| 29 | 9.8 | 7:41 | 5:28 |
| 30 | 9.7 | 7:43 | 5:26 |
| 31 | 9.7 | 7:44 | 5:24 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 2.05 kWh/m².
For context, solar energy here swings from a low near 0.76 kWh/m² to a high of 5.55 kWh/m² in June across the year — October's 2.05 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.6 | 2.6 | 2.5 | 2.5 | 2.5 | 2.4 | 2.4 | 2.4 | 2.3 | 2.3 | 2.3 | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 | 2.0 | 2.0 | 2.0 | 1.9 | 1.9 | 1.9 | 1.8 | 1.8 | 1.7 | 1.7 | 1.7 | 1.6 | 1.6 | 1.6 | 1.5 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.6 | Moderate |
| 2 | 2.6 | Moderate |
| 3 | 2.5 | Moderate |
| 4 | 2.5 | Moderate |
| 5 | 2.5 | Moderate |
| 6 | 2.4 | Moderate |
| 7 | 2.4 | Moderate |
| 8 | 2.4 | Moderate |
| 9 | 2.3 | Moderate |
| 10 | 2.3 | Moderate |
| 11 | 2.3 | Moderate |
| 12 | 2.2 | Moderate |
| 13 | 2.2 | Moderate |
| 14 | 2.1 | Moderate |
| 15 | 2.1 | Moderate |
| 16 | 2.1 | Moderate |
| 17 | 2.0 | Moderate |
| 18 | 2.0 | Moderate |
| 19 | 2.0 | Dim |
| 20 | 1.9 | Dim |
| 21 | 1.9 | Dim |
| 22 | 1.9 | Dim |
| 23 | 1.8 | Dim |
| 24 | 1.8 | Dim |
| 25 | 1.7 | Dim |
| 26 | 1.7 | Dim |
| 27 | 1.7 | Dim |
| 28 | 1.6 | Dim |
| 29 | 1.6 | Dim |
| 30 | 1.6 | Dim |
| 31 | 1.5 | Dim |
Is October a good time to visit Saint-Gratien?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a reasonable time to visit Saint-Gratien for sightseeing.
What to pack for Saint-Gratien in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Saint-Gratien sees daytime highs around 16°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 11 days see rain.
UV index in Saint-Gratien in October
Clear-sky midday UV in October peaks around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Saint-Gratien peaks around June 23 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 7 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | Moderate |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 7 | High |
| Aug | 7 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Saint-Gratien in October
Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.
Air quality in Saint-Gratien is worst in April — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 17 | 17 | 20 | 20 | 17 | 16 | 13 | 14 | 15 | 15 | 15 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 17 | Moderate |
| Mar | 20 | Moderate |
| Apr | 20 | Moderate |
| May | 17 | Moderate |
| Jun | 16 | Moderate |
| Jul | 13 | Moderate |
| Aug | 14 | Moderate |
| Sep | 15 | Moderate |
| Oct | 15 | Moderate |
| Nov | 15 | Moderate |
| Dec | 15 | Moderate |
Where is Saint-Gratien?
Saint-Gratien sits at 49.0°N, 2.3°E, 45 m above sea level, in France. The nearest listed city is Soisy-sous-Montmorency, 2.0 km away.
Topography around Saint-Gratien
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Gratien.
Within 3 km, the terrain around Saint-Gratien has only modest variations in elevation — a maximum elevation change of 145 m around an average of 56 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 220 m; within 80 km, significant variations in elevation — a maximum elevation change of 258 m.
The land around Saint-Gratien is covered by artificial surfaces (56%) and trees (38%) within 3 km, artificial surfaces (46%) and trees (32%) within 16 km, and cropland (52%) and trees (33%) within 80 km.
France travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 77% of US
- price level, 2025
- GDP per capita
- $48,986
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.3
- per 100k, 2023
- Road deaths
- 5.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 539
- 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 Saint-Gratien (48.9735°, 2.2873°, elevation 45 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. 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).