How many sunny days does Bayamón have per year?

Bayamón averages approximately 331 sunny days per year, based on historical climate data.

What is the air quality in Bayamón?

Bayamón has an annual PM2.5 concentration of 8.1 µg/m³, classified as "Good" by WHO standards. Within WHO interim target 4. Low health risk for most people.

Bayamón

Bayamón · Puerto Rico

Puerto Rico's second-largest city.

Photo by Frederick Rosa on Unsplash

Medium city

749K

309 km²

20m

00:06 UTC-4

USD

Explore on map →Climate twin →

Bayamón, Puerto Rico is a 749K-resident city with 331 sunny days and 0 frost days annually and an annual PM2.5 of 8.1 µg/m³. Puerto Rico's second-largest city.

Find your city match in 5 minutes

Take the quiz

Climate

Feels-like °C

Dinner outside

Climate Lab·Bayamón

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

Full page →

Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	28	28	28	29	30	31	31	31	31	31	29	28	29
Daily mean°C	26	26	26	26	28	29	29	29	29	28	27	26	27
Daily low°C	23	23	24	24	26	27	27	27	27	26	26	24	25
Thermal comfort
High feelsDaily high feels-like°C	31	29	31	32	33	34	34	34	35	34	33	32	33
Mean feelsDaily mean feels-like°C	26	26	27	28	30	31	31	31	32	30	29	27	29
Low feelsDaily low feels-like°C	19	18	19	20	23	24	24	24	25	24	22	20	22
Humidity
HumidityRelative humidity%	75	76	73	71	74	72	77	77	79	80	80	77	76
Dewpoint°C	20.9	20.6	20.6	21.2	22.5	23.3	23.8	24.3	24.4	24.1	23.3	21.8	22.5
Precipitation
Rainfallmm	36	53	37	42	68	50	77	87	119	130	97	47	842
Rain days≥1mm	7	13	14	9	13	14	18	18	23	21	22	18	190
Wind
Wind avgm/s	4.2	4.9	4.6	4.3	4.5	4.8	5.2	4.7	3.5	3.3	3.9	4.0	4.3
Wind gustsm/s	6.8	7.1	6.8	6.0	6.2	6.5	7.3	6.6	5.6	5.1	5.9	6.9	6.4
Sun & UV
Sunshinehrs/day	9.3	9.3	9.6	9.6	10.2	10.7	10.8	9.8	9.6	9.0	8.9	8.9	9.6
Clear skyindex	68%	70%	65%	54%	50%	49%	54%	48%	48%	47%	57%	65%	56%
UV indexmax avg	6.4	8.0	9.9	10.5	10.1	9.8	9.4	9.9	9.7	8.8	6.9	6.1	8.8

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

Confidence: High

Lifestyle Calendar·Bayamón

Bayamón offers a solid outdoor season. 2 months of the year are perfect for all activities. Dinner outside is comfortable 12/12 months — impressive, while walking works 8/12 months.

Full page →

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

12/12

Dinner Outside

84Jan: 84% viability

86Feb: 86% viability

87Mar: 87% viability

79Apr: 79% viability

88May: 88% viability

83Jun: 83% viability

83Jul: 83% viability

80Aug: 80% viability

78Sep: 78% viability

80Oct: 80% viability

81Nov: 81% viability

86Dec: 86% viability

12/12

Dinner Outside

84Jan: 84% viability

86Feb: 86% viability

87Mar: 87% viability

79Apr: 79% viability

88May: 88% viability

83Jun: 83% viability

83Jul: 83% viability

80Aug: 80% viability

78Sep: 78% viability

80Oct: 80% viability

81Nov: 81% viability

86Dec: 86% viability

83%

6/12

Lunch Outside

73Jan: 73% viability

63Feb: 63% viability

76Mar: 76% viability

67Apr: 67% viability

71May: 71% viability

67Jun: 67% viability

60Jul: 60% viability

53Aug: 53% viability

38Sep: 38% viability

44Oct: 44% viability

60Nov: 60% viability

70Dec: 70% viability

6/12

Lunch Outside

73Jan: 73% viability

63Feb: 63% viability

76Mar: 76% viability

67Apr: 67% viability

71May: 71% viability

67Jun: 67% viability

60Jul: 60% viability

53Aug: 53% viability

38Sep: 38% viability

44Oct: 44% viability

60Nov: 60% viability

70Dec: 70% viability

62%

Humid

8/12

Walking

91Jan: 91% viability

95Feb: 95% viability

95Mar: 95% viability

84Apr: 84% viability

68May: 68% viability

63Jun: 63% viability

66Jul: 66% viability

41Aug: 41% viability

24Sep: 24% viability

43Oct: 43% viability

76Nov: 76% viability

92Dec: 92% viability

8/12

Walking

91Jan: 91% viability

95Feb: 95% viability

95Mar: 95% viability

84Apr: 84% viability

68May: 68% viability

63Jun: 63% viability

66Jul: 66% viability

41Aug: 41% viability

24Sep: 24% viability

43Oct: 43% viability

76Nov: 76% viability

92Dec: 92% viability

70%

Humid

3/12

Running

65Jan: 65% viability

79Feb: 79% viability

70Mar: 70% viability

51Apr: 51% viability

21May: 21% viability

9Jun: 9% viability

11Jul: 11% viability

5Aug: 5% viability

4Sep: 4% viability

12Oct: 12% viability

31Nov: 31% viability

58Dec: 58% viability

3/12

Running

65Jan: 65% viability

79Feb: 79% viability

70Mar: 70% viability

51Apr: 51% viability

21May: 21% viability

9Jun: 9% viability

11Jul: 11% viability

5Aug: 5% viability

4Sep: 4% viability

12Oct: 12% viability

31Nov: 31% viability

58Dec: 58% viability

35%

Humid

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

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

Confidence: High

Bayamón · Puerto Rico

Climate

Climate Lab·Bayamón

Lifestyle Calendar·Bayamón

Air Quality Profile

Air Quality Profile

Who thrives in Bayamón

Frequently asked about Bayamón