How many sunny days does Portmore have per year?

Portmore averages approximately 333 sunny days per year, based on historical climate data.

What is the air quality in Portmore?

Portmore has an annual PM2.5 concentration of 21.4 µg/m³, classified as "Moderate" by WHO standards. Above WHO targets. Some respiratory effects possible with prolonged exposure.

Saint Catherine Parish

Portmore · Jamaica

Jamaica's second-largest city.

Photo by andrzj brown on Unsplash

Medium city

343K

102 km²

23:07 UTC-5

JMD

Explore on map →Climate twin →

Portmore, Jamaica is a 343K-resident city with 333 sunny days and 0 frost days annually and an annual PM2.5 of 21.4 µg/m³. Jamaica's second-largest city.

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Climate

Feels-like °C

Dinner outside

Climate Lab·Portmore

Monthly climate metrics across temperature, precipitation, wind, and UV.

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Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	28	28	28	28	30	30	31	31	30	29	29	28	29
Daily mean°C	26	26	27	26	28	28	29	29	28	27	27	26	27
Daily low°C	23	23	24	24	25	26	26	27	26	25	25	24	25
Thermal comfort
High feelsDaily high feels-like°C	33	33	33	33	35	35	36	37	36	36	34	33	34
Mean feelsDaily mean feels-like°C	28	28	29	30	32	31	32	33	32	32	31	28	30
Low feelsDaily low feels-like°C	19	20	20	22	25	25	25	25	25	24	23	21	23
Humidity
HumidityRelative humidity%	68	70	70	73	74	73	68	71	79	81	79	77	74
Dewpoint°C	19.6	20.0	19.9	21.1	22.3	22.6	22.5	23.1	23.7	23.8	22.8	21.4	21.9
Precipitation
Rainfallmm	11	24	24	50	63	61	55	73	145	140	199	17	860
Rain days≥1mm	3	6	7	12	11	15	12	15	19	24	14	5	143
Wind
Wind avgm/s	3.3	3.9	3.8	3.5	4.0	4.2	4.3	3.2	2.6	2.4	2.5	3.0	3.4
Wind gustsm/s	6.3	6.1	6.0	5.7	5.8	6.5	6.5	5.9	4.9	4.8	5.4	5.1	5.7
Sun & UV
Sunshinehrs/day	9.0	9.4	9.8	10.2	10.6	10.5	10.9	10.4	9.8	9.0	8.6	9.0	9.8
Clear skyindex	74%	76%	67%	53%	48%	39%	55%	52%	56%	48%	46%	68%	57%
UV indexmax avg	6.8	8.2	10.1	10.9	10.4	9.6	9.5	10.2	9.7	8.1	6.5	6.0	8.8

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Lifestyle Calendar·Portmore

Outdoor living in Portmore is seasonal. Dinner outside is comfortable 12/12 months — impressive, while even lunch outside manages 4/12 months.

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Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

12/12

Dinner Outside

95Jan: 95% viability

94Feb: 94% viability

96Mar: 96% viability

93Apr: 93% viability

93May: 93% viability

88Jun: 88% viability

92Jul: 92% viability

88Aug: 88% viability

85Sep: 85% viability

82Oct: 82% viability

80Nov: 80% viability

98Dec: 98% viability

12/12

Dinner Outside

95Jan: 95% viability

94Feb: 94% viability

96Mar: 96% viability

93Apr: 93% viability

93May: 93% viability

88Jun: 88% viability

92Jul: 92% viability

88Aug: 88% viability

85Sep: 85% viability

82Oct: 82% viability

80Nov: 80% viability

98Dec: 98% viability

90%

4/12

Lunch Outside

87Jan: 87% viability

80Feb: 80% viability

78Mar: 78% viability

62Apr: 62% viability

58May: 58% viability

53Jun: 53% viability

39Jul: 39% viability

21Aug: 21% viability

20Sep: 20% viability

27Oct: 27% viability

52Nov: 52% viability

81Dec: 81% viability

4/12

Lunch Outside

87Jan: 87% viability

80Feb: 80% viability

78Mar: 78% viability

62Apr: 62% viability

58May: 58% viability

53Jun: 53% viability

39Jul: 39% viability

21Aug: 21% viability

20Sep: 20% viability

27Oct: 27% viability

52Nov: 52% viability

81Dec: 81% viability

55%

Humid

4/12

Walking

83Jan: 83% viability

91Feb: 91% viability

76Mar: 76% viability

60Apr: 60% viability

46May: 46% viability

45Jun: 45% viability

24Jul: 24% viability

14Aug: 14% viability

19Sep: 19% viability

37Oct: 37% viability

55Nov: 55% viability

82Dec: 82% viability

4/12

Walking

83Jan: 83% viability

91Feb: 91% viability

76Mar: 76% viability

60Apr: 60% viability

46May: 46% viability

45Jun: 45% viability

24Jul: 24% viability

14Aug: 14% viability

19Sep: 19% viability

37Oct: 37% viability

55Nov: 55% viability

82Dec: 82% viability

53%

Humid

0/12

Running

25Jan: 25% viability

36Feb: 36% viability

20Mar: 20% viability

8Apr: 8% viability

5May: 5% viability

6Jun: 6% viability

2Jul: 2% viability

2Aug: 2% viability

4Sep: 4% viability

10Oct: 10% viability

15Nov: 15% viability

30Dec: 30% viability

0/12

Running

25Jan: 25% viability

36Feb: 36% viability

20Mar: 20% viability

8Apr: 8% viability

5May: 5% viability

6Jun: 6% viability

2Jul: 2% viability

2Aug: 2% viability

4Sep: 4% viability

10Oct: 10% viability

15Nov: 15% viability

30Dec: 30% viability

14%

Heat

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Portmore · Jamaica

Climate

Climate Lab·Portmore

Lifestyle Calendar·Portmore

Air Quality Profile

Air Quality Profile

Who thrives in Portmore

Things to consider in Portmore

Why not Portmore?

Frequently asked about Portmore