Portmore weather in August
In August, Portmore sees average daytime highs of 30°C and overnight lows near 25°C, with 86 mm of rain across 14.6 wet days and about 12.6 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.
Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 34% of the time in August, and the air most often feels oppressive.
Daylight stretches from about 12 h 48 min at the start of August to 12 h 24 min by month's end. Set against the rest of the year, August is Portmore's 8th-clearest and 7th-windiest month. For the whole year in context, see Portmore's year-round climate.
- Daytime high
- 30°
- 1st warmest
- Overnight low
- 25°
- 12th coldest
- Rainfall
- 86 mm
- 14.6 wet days
- Daylight
- 12 h 36 min
- 5:53 AM – 6:30 PM
- Cloud cover
- 57%
- 8th clearest
- Wind
- 11 km/h
- 7th windiest
- Solar energy
- 6.37 kWh/m²
- Travel score
- 4.5
- out of 10
Portmore is city in the Saint Catherine Parish, Jamaica.
- Air quality
- Elevated
- PM10 53.8 µg/m³ · 2012
- Founded
- 1960
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 30°C through the month.
A typical August day in Portmore reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 31°C. Set against its neighbours, August runs on par with July and on par with 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) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 25 |
| 2 | 30 | 25 |
| 3 | 30 | 25 |
| 4 | 30 | 25 |
| 5 | 30 | 25 |
| 6 | 30 | 25 |
| 7 | 30 | 25 |
| 8 | 30 | 25 |
| 9 | 30 | 25 |
| 10 | 30 | 25 |
| 11 | 30 | 25 |
| 12 | 30 | 25 |
| 13 | 30 | 25 |
| 14 | 30 | 25 |
| 15 | 30 | 25 |
| 16 | 30 | 25 |
| 17 | 30 | 25 |
| 18 | 30 | 25 |
| 19 | 30 | 25 |
| 20 | 30 | 25 |
| 21 | 30 | 25 |
| 22 | 30 | 25 |
| 23 | 30 | 25 |
| 24 | 30 | 25 |
| 25 | 30 | 25 |
| 26 | 30 | 25 |
| 27 | 30 | 25 |
| 28 | 30 | 25 |
| 29 | 30 | 25 |
| 30 | 30 | 25 |
| 31 | 30 | 25 |
How August really feels in Portmore
Once humidity and wind are folded in, August averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Portmore weather by month
How August compares with the rest of the year at a glance. August is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 22° | 17 | 4.4 | 11 | 7.8 |
| Feb | 27° / 22° | 17 | 4.6 | 11.4 | 7.7 |
| Mar | 27° / 22° | 31 | 6.5 | 11.9 | 7.4 |
| Apr | 28° / 23° | 48 | 9.4 | 12.4 | 6.6 |
| May | 28° / 23° | 119 | 15.4 | 12.8 | 5.2 |
| Jun | 29° / 24° | 68 | 11 | 13.1 | 5.2 |
| Jul | 30° / 25° | 52 | 9.4 | 13 | 5.2 |
| Aug | 30° / 25° | 86 | 14.6 | 12.6 | 4.5 |
| Sep | 29° / 24° | 139 | 18.9 | 12.1 | 4.2 |
| Oct | 28° / 24° | 140 | 21.4 | 11.6 | 4.3 |
| Nov | 28° / 23° | 67 | 11.7 | 11.2 | 6.1 |
| Dec | 27° / 22° | 30 | 6.2 | 10.9 | 7.4 |
Cloud cover in August
The sky is clear or mostly clear about 34% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 46%. 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 64 | 64 | 62 | 62 | 61 | 61 | 60 | 59 | 59 | 58 | 57 | 56 | 56 | 55 | 54 | 53 | 53 | 52 | 51 | 49 | 49 | 47 | 48 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 47 |
| Cloudier (%) | 36 | 36 | 38 | 38 | 39 | 39 | 40 | 41 | 41 | 42 | 43 | 44 | 44 | 45 | 46 | 47 | 47 | 48 | 49 | 51 | 51 | 53 | 52 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 53 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 64 | 36 |
| 2 | 64 | 36 |
| 3 | 62 | 38 |
| 4 | 62 | 38 |
| 5 | 61 | 39 |
| 6 | 61 | 39 |
| 7 | 60 | 40 |
| 8 | 59 | 41 |
| 9 | 59 | 41 |
| 10 | 58 | 42 |
| 11 | 57 | 43 |
| 12 | 56 | 44 |
| 13 | 56 | 44 |
| 14 | 55 | 45 |
| 15 | 54 | 46 |
| 16 | 53 | 47 |
| 17 | 53 | 47 |
| 18 | 52 | 48 |
| 19 | 51 | 49 |
| 20 | 49 | 51 |
| 21 | 49 | 51 |
| 22 | 47 | 53 |
| 23 | 48 | 52 |
| 24 | 46 | 54 |
| 25 | 46 | 54 |
| 26 | 46 | 54 |
| 27 | 46 | 54 |
| 28 | 46 | 54 |
| 29 | 46 | 54 |
| 30 | 46 | 54 |
| 31 | 47 | 53 |
Chance of precipitation in August
Portmore gets around 86 mm of rain over 14.6 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 46% and peaks near 58% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 34 | 35 | 36 | 37 | 37 | 38 | 38 | 39 | 39 | 39 | 40 | 41 | 41 | 42 | 43 | 44 | 46 | 47 | 48 | 50 | 51 | 53 | 54 | 55 | 56 | 56 | 57 | 57 | 58 | 58 | 58 |
| Rain chance (%) | |
|---|---|
| 1 | 34 |
| 2 | 35 |
| 3 | 36 |
| 4 | 37 |
| 5 | 37 |
| 6 | 38 |
| 7 | 38 |
| 8 | 39 |
| 9 | 39 |
| 10 | 39 |
| 11 | 40 |
| 12 | 41 |
| 13 | 41 |
| 14 | 42 |
| 15 | 43 |
| 16 | 44 |
| 17 | 46 |
| 18 | 47 |
| 19 | 48 |
| 20 | 50 |
| 21 | 51 |
| 22 | 53 |
| 23 | 54 |
| 24 | 55 |
| 25 | 56 |
| 26 | 56 |
| 27 | 57 |
| 28 | 57 |
| 29 | 58 |
| 30 | 58 |
| 31 | 58 |
Humidity in August
Most of August feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the oppressive band about 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Muggy (%) | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Oppressive (%) | 92 | 92 | 92 | 92 | 92 | 92 | 93 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 95 | 95 | 95 | 95 | 95 | 94 | 94 | 94 | 93 | 93 | 93 | 92 |
| Miserable (%) | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 |
| Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|
| 1 | 3 | 92 | 5 |
| 2 | 3 | 92 | 5 |
| 3 | 2 | 92 | 6 |
| 4 | 2 | 92 | 6 |
| 5 | 2 | 92 | 6 |
| 6 | 2 | 92 | 6 |
| 7 | 1 | 93 | 6 |
| 8 | 1 | 94 | 5 |
| 9 | 1 | 94 | 5 |
| 10 | 1 | 94 | 5 |
| 11 | 1 | 94 | 5 |
| 12 | 1 | 94 | 5 |
| 13 | 1 | 94 | 5 |
| 14 | 1 | 94 | 5 |
| 15 | 1 | 94 | 5 |
| 16 | 1 | 94 | 5 |
| 17 | 1 | 94 | 5 |
| 18 | 1 | 94 | 5 |
| 19 | 1 | 94 | 5 |
| 20 | 0 | 95 | 5 |
| 21 | 0 | 95 | 5 |
| 22 | 0 | 95 | 5 |
| 23 | 0 | 95 | 5 |
| 24 | 0 | 95 | 5 |
| 25 | 0 | 94 | 6 |
| 26 | 0 | 94 | 6 |
| 27 | 0 | 94 | 6 |
| 28 | 0 | 93 | 7 |
| 29 | 0 | 93 | 7 |
| 30 | 0 | 93 | 7 |
| 31 | 0 | 92 | 8 |
Wind in August
Winds average 11 km/h in August.
Across August, daily wind ranges from about 10 km/h on the calmest days to 12 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 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| 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 | 12 | calm |
| 2 | 12 | calm |
| 3 | 12 | calm |
| 4 | 12 | calm |
| 5 | 12 | calm |
| 6 | 12 | calm |
| 7 | 12 | calm |
| 8 | 12 | calm |
| 9 | 12 | 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 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 10 | calm |
| 30 | 10 | calm |
| 31 | 10 | calm |
Sunrise & sunset in August
Daylight runs from about 12 h 48 min at the start of August to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over August. Sunrise moves from 5:49 AM to 5:56 AM, and sunset from 6:38 PM to 6:19 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) | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 |
| Sunrise (AM) | 5:49 | 5:49 | 5:50 | 5:50 | 5:50 | 5:51 | 5:51 | 5:51 | 5:51 | 5:52 | 5:52 | 5:52 | 5:53 | 5:53 | 5:53 | 5:53 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:55 | 5:55 | 5:55 | 5:55 | 5:55 | 5:56 | 5:56 | 5:56 | 5:56 | 5:56 |
| Sunset (PM) | 6:38 | 6:38 | 6:37 | 6:37 | 6:36 | 6:36 | 6:35 | 6:35 | 6:34 | 6:34 | 6:33 | 6:33 | 6:32 | 6:31 | 6:31 | 6:30 | 6:29 | 6:29 | 6:28 | 6:27 | 6:27 | 6:26 | 6:25 | 6:24 | 6:24 | 6:23 | 6:22 | 6:21 | 6:20 | 6:20 | 6:19 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.8 | 5:49 | 6:38 |
| 2 | 12.8 | 5:49 | 6:38 |
| 3 | 12.8 | 5:50 | 6:37 |
| 4 | 12.8 | 5:50 | 6:37 |
| 5 | 12.8 | 5:50 | 6:36 |
| 6 | 12.8 | 5:51 | 6:36 |
| 7 | 12.7 | 5:51 | 6:35 |
| 8 | 12.7 | 5:51 | 6:35 |
| 9 | 12.7 | 5:51 | 6:34 |
| 10 | 12.7 | 5:52 | 6:34 |
| 11 | 12.7 | 5:52 | 6:33 |
| 12 | 12.7 | 5:52 | 6:33 |
| 13 | 12.7 | 5:53 | 6:32 |
| 14 | 12.6 | 5:53 | 6:31 |
| 15 | 12.6 | 5:53 | 6:31 |
| 16 | 12.6 | 5:53 | 6:30 |
| 17 | 12.6 | 5:54 | 6:29 |
| 18 | 12.6 | 5:54 | 6:29 |
| 19 | 12.6 | 5:54 | 6:28 |
| 20 | 12.6 | 5:54 | 6:27 |
| 21 | 12.5 | 5:54 | 6:27 |
| 22 | 12.5 | 5:55 | 6:26 |
| 23 | 12.5 | 5:55 | 6:25 |
| 24 | 12.5 | 5:55 | 6:24 |
| 25 | 12.5 | 5:55 | 6:24 |
| 26 | 12.5 | 5:55 | 6:23 |
| 27 | 12.4 | 5:56 | 6:22 |
| 28 | 12.4 | 5:56 | 6:21 |
| 29 | 12.4 | 5:56 | 6:20 |
| 30 | 12.4 | 5:56 | 6:20 |
| 31 | 12.4 | 5:56 | 6:19 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 6.37 kWh/m².
For context, solar energy here swings from a low near 4.39 kWh/m² to a high of 6.68 kWh/m² in July across the year — August's 6.37 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) | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.6 | Intense |
| 2 | 6.6 | Intense |
| 3 | 6.6 | Intense |
| 4 | 6.6 | Intense |
| 5 | 6.6 | Intense |
| 6 | 6.6 | Intense |
| 7 | 6.5 | Intense |
| 8 | 6.5 | Intense |
| 9 | 6.5 | Intense |
| 10 | 6.5 | Intense |
| 11 | 6.5 | Intense |
| 12 | 6.5 | Intense |
| 13 | 6.5 | Intense |
| 14 | 6.4 | Intense |
| 15 | 6.4 | Intense |
| 16 | 6.4 | Intense |
| 17 | 6.4 | Intense |
| 18 | 6.3 | Intense |
| 19 | 6.3 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.3 | Intense |
| 22 | 6.3 | Intense |
| 23 | 6.3 | Intense |
| 24 | 6.2 | Intense |
| 25 | 6.2 | Intense |
| 26 | 6.2 | Intense |
| 27 | 6.2 | Intense |
| 28 | 6.2 | Intense |
| 29 | 6.2 | Intense |
| 30 | 6.2 | Intense |
| 31 | 6.1 | Intense |
Hazard calendar for Portmore
In August, Portmore sits inside its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.
Portmore sits in the Atlantic hurricane belt; the season peaks August–October.
Portmore's rainy season runs May–June, when most of the year's rain falls.
Is August a good time to visit Portmore?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a reasonable time to visit Portmore for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Portmore in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Portmore sees daytime highs around 30°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.
Sea temperature near Portmore in August
The nearest coast averages about 29°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 29°C and coldest in February near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 28 | Warm |
| May | 28 | Tropical |
| Jun | 28 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Portmore in August
Clear-sky midday UV in August peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Portmore peaks around April 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 10 | 12 | 13 | 12 | 13 | 11 | 12 | 12 | 11 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Extreme |
| Mar | 12 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | Very high |
Air quality in Portmore 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 Portmore is worst in June — around 35 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (January, 17 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) | 17 | 17 | 18 | 18 | 24 | 35 | 34 | 29 | 23 | 24 | 20 | 17 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 17 | Moderate |
| Mar | 18 | Moderate |
| Apr | 18 | Moderate |
| May | 24 | Moderate |
| Jun | 35 | Poor |
| Jul | 34 | Moderate |
| Aug | 29 | Moderate |
| Sep | 23 | Moderate |
| Oct | 24 | Moderate |
| Nov | 20 | Moderate |
| Dec | 17 | Moderate |
Where is Portmore?
Portmore sits at 18.0°N, 76.9°W, 7 m above sea level, in Jamaica. The nearest listed city is Port Royal, 6.0 km away.
Topography around Portmore
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Portmore.
Within 3 km, the terrain around Portmore has only modest variations in elevation — a maximum elevation change of 201 m around an average of 14 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 767 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,229 m.
The land around Portmore is covered by artificial surfaces (43%) and trees (25%) within 3 km, trees (43%) and water (27%) within 16 km, and water (58%) and trees (35%) within 80 km.
Jamaica travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 110 V · 50 Hz
- Prices
- ≈ 60% of US
- price level, 2025
- GDP per capita
- $8,003
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Homicide rate
- 49.4
- per 100k, 2023
- Road deaths
- 15.1
- per 100k/yr, 2019
- Income group
- Upper middle
- 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 Portmore (17.971°, -76.8869°, elevation 7 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).