Massy weather in August
In August, Massy sees average daytime highs of 24°C and overnight lows near 14°C, with 57 mm of rain across 9 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.
Highs ease over the month, from about 25°C in the first days to 23°C by the end. The sky is clear or mostly clear about 25% of the time in August, and the air most often feels dry.
Daylight stretches from about 14 h 54 min at the start of August to 13 h 18 min by month's end. Set against the rest of the year, August is Massy's 1st-clearest and 12th-windiest month. For the whole year in context, see Massy's year-round climate.
- Daytime high
- 24°
- 2nd warmest
- Overnight low
- 14°
- 11th coldest
- Rainfall
- 57 mm
- 9 wet days
- Daylight
- 14 h 12 min
- 5:50 AM – 8:00 PM
- Cloud cover
- 61%
- 1st clearest
- Wind
- 11 km/h
- 12th windiest
- Solar energy
- 4.78 kWh/m²
- Travel score
- 7.0
- out of 10
Temperature in August
Highs ease over the month, from about 25°C in the first days to 23°C by the end.
A typical August day in Massy reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 30°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.
| 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) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg low (°C) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 15 |
| 2 | 25 | 15 |
| 3 | 25 | 15 |
| 4 | 25 | 15 |
| 5 | 25 | 15 |
| 6 | 25 | 15 |
| 7 | 25 | 15 |
| 8 | 25 | 15 |
| 9 | 25 | 15 |
| 10 | 25 | 15 |
| 11 | 25 | 15 |
| 12 | 25 | 14 |
| 13 | 25 | 14 |
| 14 | 25 | 14 |
| 15 | 25 | 14 |
| 16 | 25 | 14 |
| 17 | 24 | 14 |
| 18 | 24 | 14 |
| 19 | 24 | 14 |
| 20 | 24 | 14 |
| 21 | 24 | 14 |
| 22 | 24 | 14 |
| 23 | 24 | 14 |
| 24 | 24 | 14 |
| 25 | 24 | 14 |
| 26 | 23 | 13 |
| 27 | 23 | 13 |
| 28 | 23 | 13 |
| 29 | 23 | 13 |
| 30 | 23 | 13 |
| 31 | 23 | 13 |
How August really feels in Massy
Once humidity and wind are folded in, August 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.
August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Massy weather by month
How August compares with the rest of the year at a glance. August is the 2nd-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 | 7° / 2° | 52 | 11.3 | 0.8 | 8.5 | 0.7 |
| Feb | 8° / 2° | 47 | 10 | 1.1 | 9.8 | 1.2 |
| Mar | 12° / 4° | 51 | 10.5 | 0.5 | 11.6 | 3.0 |
| Apr | 15° / 6° | 50 | 10.6 | 0 | 13.4 | 4.5 |
| May | 19° / 9° | 66 | 11.3 | 0 | 15 | 5.6 |
| Jun | 22° / 12° | 58 | 10.6 | 0 | 15.9 | 6.4 |
| Jul | 25° / 14° | 55 | 9.4 | 0 | 15.5 | 6.9 |
| Aug | 24° / 14° | 57 | 9 | 0 | 14.2 | 7.0 |
| Sep | 21° / 11° | 47 | 8.4 | 0 | 12.4 | 6.5 |
| Oct | 16° / 8° | 62 | 11.2 | 0 | 10.5 | 4.6 |
| Nov | 10° / 5° | 58 | 11.3 | 0.3 | 9 | 2.2 |
| Dec | 7° / 3° | 68 | 12.5 | 0.9 | 8.1 | 0.9 |
Cloud cover in August
The sky is clear or mostly clear about 25% of the time in August, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 57%.
| 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 (%) | 43 | 43 | 44 | 44 | 45 | 45 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 43 | 43 | 43 | 42 | 42 | 41 | 41 | 42 | 42 | 41 | 40 | 41 | 40 | 40 | 40 | 41 |
| Cloudier (%) | 57 | 57 | 56 | 56 | 55 | 55 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 57 | 57 | 57 | 58 | 58 | 59 | 59 | 58 | 58 | 59 | 60 | 59 | 60 | 60 | 60 | 59 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 43 | 57 |
| 2 | 43 | 57 |
| 3 | 44 | 56 |
| 4 | 44 | 56 |
| 5 | 45 | 55 |
| 6 | 45 | 55 |
| 7 | 44 | 56 |
| 8 | 44 | 56 |
| 9 | 44 | 56 |
| 10 | 44 | 56 |
| 11 | 44 | 56 |
| 12 | 44 | 56 |
| 13 | 44 | 56 |
| 14 | 44 | 56 |
| 15 | 44 | 56 |
| 16 | 43 | 57 |
| 17 | 43 | 57 |
| 18 | 43 | 57 |
| 19 | 42 | 58 |
| 20 | 42 | 58 |
| 21 | 41 | 59 |
| 22 | 41 | 59 |
| 23 | 42 | 58 |
| 24 | 42 | 58 |
| 25 | 41 | 59 |
| 26 | 40 | 60 |
| 27 | 41 | 59 |
| 28 | 40 | 60 |
| 29 | 40 | 60 |
| 30 | 40 | 60 |
| 31 | 41 | 59 |
Chance of precipitation in August
Massy gets around 57 mm of rain over 9 wet days in August. 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 30% 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 (%) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 26 |
| Rain chance (%) | |
|---|---|
| 1 | 30 |
| 2 | 30 |
| 3 | 30 |
| 4 | 30 |
| 5 | 30 |
| 6 | 30 |
| 7 | 30 |
| 8 | 30 |
| 9 | 30 |
| 10 | 30 |
| 11 | 30 |
| 12 | 30 |
| 13 | 30 |
| 14 | 30 |
| 15 | 29 |
| 16 | 29 |
| 17 | 29 |
| 18 | 29 |
| 19 | 29 |
| 20 | 29 |
| 21 | 29 |
| 22 | 29 |
| 23 | 28 |
| 24 | 28 |
| 25 | 28 |
| 26 | 28 |
| 27 | 28 |
| 28 | 27 |
| 29 | 27 |
| 30 | 27 |
| 31 | 26 |
Humidity in August
Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the dry band about 46% 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 (%) | 38 | 38 | 38 | 39 | 40 | 40 | 41 | 41 | 42 | 42 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 45 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 55 | 56 | 58 | 59 |
| Comfortable (%) | 40 | 40 | 39 | 39 | 38 | 38 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 33 | 33 | 32 | 31 | 31 | 30 | 30 | 29 | 29 | 28 | 28 |
| Humid (%) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 17 | 17 | 16 | 15 | 14 | 14 | 13 |
| Muggy (%) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 38 | 40 | 19 | 3 |
| 2 | 38 | 40 | 19 | 3 |
| 3 | 38 | 39 | 19 | 3 |
| 4 | 39 | 39 | 19 | 3 |
| 5 | 40 | 38 | 19 | 3 |
| 6 | 40 | 38 | 19 | 3 |
| 7 | 41 | 37 | 19 | 3 |
| 8 | 41 | 37 | 19 | 3 |
| 9 | 42 | 36 | 19 | 3 |
| 10 | 42 | 36 | 19 | 3 |
| 11 | 43 | 36 | 19 | 2 |
| 12 | 43 | 35 | 19 | 2 |
| 13 | 43 | 35 | 19 | 2 |
| 14 | 44 | 35 | 20 | 2 |
| 15 | 44 | 35 | 20 | 2 |
| 16 | 44 | 35 | 20 | 1 |
| 17 | 44 | 35 | 20 | 1 |
| 18 | 45 | 35 | 20 | 1 |
| 19 | 45 | 34 | 20 | 1 |
| 20 | 46 | 34 | 19 | 1 |
| 21 | 47 | 33 | 19 | 1 |
| 22 | 48 | 33 | 19 | 1 |
| 23 | 49 | 32 | 18 | 1 |
| 24 | 50 | 31 | 18 | 1 |
| 25 | 51 | 31 | 17 | 1 |
| 26 | 52 | 30 | 17 | 1 |
| 27 | 53 | 30 | 16 | 1 |
| 28 | 55 | 29 | 15 | 1 |
| 29 | 56 | 29 | 14 | 1 |
| 30 | 58 | 28 | 14 | 0 |
| 31 | 59 | 28 | 13 | 0 |
Wind in August
Winds average 11 km/h in August, the calmest month.
Across August, daily wind ranges from about 11 km/h on the calmest days to 11 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) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in August
Daylight runs from about 14 h 54 min at the start of August to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 96 minutes over August. Sunrise moves from 5:29 AM to 6:11 AM, and sunset from 8:25 PM to 7:30 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) | 14.9 | 14.9 | 14.8 | 14.8 | 14.7 | 14.7 | 14.6 | 14.6 | 14.5 | 14.5 | 14.4 | 14.4 | 14.3 | 14.3 | 14.2 | 14.2 | 14.1 | 14.1 | 14.0 | 14.0 | 13.9 | 13.8 | 13.8 | 13.7 | 13.7 | 13.6 | 13.6 | 13.5 | 13.4 | 13.4 | 13.3 |
| Sunrise (AM) | 5:29 | 5:30 | 5:31 | 5:33 | 5:34 | 5:36 | 5:37 | 5:38 | 5:40 | 5:41 | 5:43 | 5:44 | 5:45 | 5:47 | 5:48 | 5:50 | 5:51 | 5:53 | 5:54 | 5:55 | 5:57 | 5:58 | 6:00 | 6:01 | 6:03 | 6:04 | 6:06 | 6:07 | 6:08 | 6:10 | 6:11 |
| Sunset (PM) | 8:25 | 8:24 | 8:22 | 8:21 | 8:19 | 8:17 | 8:16 | 8:14 | 8:13 | 8:11 | 8:09 | 8:07 | 8:06 | 8:04 | 8:02 | 8:00 | 7:58 | 7:57 | 7:55 | 7:53 | 7:51 | 7:49 | 7:47 | 7:45 | 7:43 | 7:41 | 7:39 | 7:37 | 7:35 | 7:33 | 7:30 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.9 | 5:29 | 8:25 |
| 2 | 14.9 | 5:30 | 8:24 |
| 3 | 14.8 | 5:31 | 8:22 |
| 4 | 14.8 | 5:33 | 8:21 |
| 5 | 14.7 | 5:34 | 8:19 |
| 6 | 14.7 | 5:36 | 8:17 |
| 7 | 14.6 | 5:37 | 8:16 |
| 8 | 14.6 | 5:38 | 8:14 |
| 9 | 14.5 | 5:40 | 8:13 |
| 10 | 14.5 | 5:41 | 8:11 |
| 11 | 14.4 | 5:43 | 8:09 |
| 12 | 14.4 | 5:44 | 8:07 |
| 13 | 14.3 | 5:45 | 8:06 |
| 14 | 14.3 | 5:47 | 8:04 |
| 15 | 14.2 | 5:48 | 8:02 |
| 16 | 14.2 | 5:50 | 8:00 |
| 17 | 14.1 | 5:51 | 7:58 |
| 18 | 14.1 | 5:53 | 7:57 |
| 19 | 14.0 | 5:54 | 7:55 |
| 20 | 14.0 | 5:55 | 7:53 |
| 21 | 13.9 | 5:57 | 7:51 |
| 22 | 13.8 | 5:58 | 7:49 |
| 23 | 13.8 | 6:00 | 7:47 |
| 24 | 13.7 | 6:01 | 7:45 |
| 25 | 13.7 | 6:03 | 7:43 |
| 26 | 13.6 | 6:04 | 7:41 |
| 27 | 13.6 | 6:06 | 7:39 |
| 28 | 13.5 | 6:07 | 7:37 |
| 29 | 13.4 | 6:08 | 7:35 |
| 30 | 13.4 | 6:10 | 7:33 |
| 31 | 13.3 | 6:11 | 7:30 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 4.78 kWh/m².
For context, solar energy here swings from a low near 0.78 kWh/m² to a high of 5.56 kWh/m² in June across the year — August's 4.78 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) | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 | 4.3 | 4.3 | 4.2 | 4.2 | 4.1 |
| 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 | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.3 | Bright |
| 2 | 5.3 | Bright |
| 3 | 5.2 | Bright |
| 4 | 5.2 | Bright |
| 5 | 5.2 | Bright |
| 6 | 5.1 | Bright |
| 7 | 5.1 | Bright |
| 8 | 5.1 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.0 | Bright |
| 12 | 4.9 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.7 | Bright |
| 18 | 4.7 | Bright |
| 19 | 4.7 | Bright |
| 20 | 4.6 | Bright |
| 21 | 4.6 | Bright |
| 22 | 4.5 | Bright |
| 23 | 4.5 | Bright |
| 24 | 4.5 | Bright |
| 25 | 4.4 | Bright |
| 26 | 4.4 | Bright |
| 27 | 4.3 | Bright |
| 28 | 4.3 | Bright |
| 29 | 4.2 | Bright |
| 30 | 4.2 | Bright |
| 31 | 4.1 | Bright |
Is August a good time to visit Massy?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is one of the better times to visit Massy for general sightseeing.
What to pack for Massy in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Massy sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.
UV index in Massy in August
Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Massy 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 Massy in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in Massy 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 Massy?
Massy sits at 48.7°N, 2.3°E, 84 m above sea level, in France. The nearest listed city is Verrières-le-Buisson, 2.0 km away.
Topography around Massy
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Massy.
Within 3 km, the terrain around Massy has only modest variations in elevation — a maximum elevation change of 120 m around an average of 82 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 197 m; within 80 km, significant variations in elevation — a maximum elevation change of 258 m.
The land around Massy is covered by artificial surfaces (52%) and trees (34%) within 3 km, artificial surfaces (42%) and trees (38%) within 16 km, and cropland (55%) and trees (31%) 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 Massy (48.7269°, 2.283°, elevation 84 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).