How many sunny days does West Bay have per year?

West Bay averages approximately 317 sunny days per year, based on historical climate data.

What is the air quality in West Bay?

West Bay has an annual PM2.5 concentration of 9.5 µg/m³, classified as "Good" by WHO standards. Within WHO interim target 4. Low health risk for most people.

West Bay

West Bay · Cayman Islands

Cayman Islands's second-largest city.

Photo by Ronny Rondon on Unsplash

Small city

15K

23:07 UTC-5

KYD

Explore on map →Climate twin →

West Bay, Cayman Islands is a 15K-resident city with 317 sunny days and 0 frost days annually and an annual PM2.5 of 9.5 µg/m³. Cayman Islands's second-largest city.

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Climate

Feels-like °C

Dinner outside

Climate Lab·West Bay

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	27	27	27	27	29	29	30	30	29	29	28	27	28
Daily mean°C	26	26	26	27	28	28	29	29	29	28	27	27	28
Daily low°C	25	25	25	26	27	27	28	28	28	27	26	25	26
Thermal comfort
High feelsDaily high feels-like°C	29	28	29	30	32	32	33	34	34	33	31	29	31
Mean feelsDaily mean feels-like°C	25	26	26	27	30	30	31	32	32	30	27	25	28
Low feelsDaily low feels-like°C	20	21	21	22	26	26	27	27	27	25	23	21	24
Humidity
HumidityRelative humidity%	75	78	77	77	79	80	79	79	78	79	78	77	78
Dewpoint°C	21.5	21.7	21.8	22.5	23.6	24.6	24.6	24.8	24.6	24.4	23.6	22.5	23.4
Precipitation
Rainfallmm	20	21	21	14	62	72	56	112	124	102	127	54	785
Rain days≥1mm	6	6	6	5	13	15	15	13	18	18	16	11	142
Wind
Wind avgm/s	6.8	7.1	6.3	6.6	5.4	5.6	5.8	4.8	4.5	5.2	6.9	7.5	6.0
Wind gustsm/s	10.8	10.2	9.9	9.8	8.0	9.5	7.9	8.3	8.0	9.7	9.6	11.0	9.4
Sun & UV
Sunshinehrs/day	9.7	10.5	10.4	10.6	11.2	11.2	11.3	10.3	9.9	9.4	8.5	8.9	10.2
Clear skyindex	71%	80%	77%	75%	64%	48%	59%	50%	54%	54%	50%	65%	62%
UV indexmax avg	6.6	8.6	10.2	11.3	10.5	9.6	9.9	10.3	10.1	8.3	6.2	6.0	9.0

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

Confidence: High

Lifestyle Calendar·West Bay

Outdoor living in West Bay is seasonal. October through December are the toughest stretch. Dinner outside works 6/12 months, while walking works 7/12 months.

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Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

6/12

Dinner Outside

55Jan: 55% viability

56Feb: 56% viability

70Mar: 70% viability

67Apr: 67% viability

78May: 78% viability

63Jun: 63% viability

79Jul: 79% viability

76Aug: 76% viability

76Sep: 76% viability

58Oct: 58% viability

37Nov: 37% viability

36Dec: 36% viability

6/12

Dinner Outside

55Jan: 55% viability

56Feb: 56% viability

70Mar: 70% viability

67Apr: 67% viability

78May: 78% viability

63Jun: 63% viability

79Jul: 79% viability

76Aug: 76% viability

76Sep: 76% viability

58Oct: 58% viability

37Nov: 37% viability

36Dec: 36% viability

63%

Wind

2/12

Lunch Outside

49Jan: 49% viability

45Feb: 45% viability

56Mar: 56% viability

56Apr: 56% viability

71May: 71% viability

58Jun: 58% viability

70Jul: 70% viability

55Aug: 55% viability

55Sep: 55% viability

42Oct: 42% viability

40Nov: 40% viability

35Dec: 35% viability

2/12

Lunch Outside

49Jan: 49% viability

45Feb: 45% viability

56Mar: 56% viability

56Apr: 56% viability

71May: 71% viability

58Jun: 58% viability

70Jul: 70% viability

55Aug: 55% viability

55Sep: 55% viability

42Oct: 42% viability

40Nov: 40% viability

35Dec: 35% viability

53%

Humid

7/12

Walking

66Jan: 66% viability

67Feb: 67% viability

78Mar: 78% viability

68Apr: 68% viability

80May: 80% viability

77Jun: 77% viability

72Jul: 72% viability

42Aug: 42% viability

42Sep: 42% viability

55Oct: 55% viability

63Nov: 63% viability

55Dec: 55% viability

7/12

Walking

66Jan: 66% viability

67Feb: 67% viability

78Mar: 78% viability

68Apr: 68% viability

80May: 80% viability

77Jun: 77% viability

72Jul: 72% viability

42Aug: 42% viability

42Sep: 42% viability

55Oct: 55% viability

63Nov: 63% viability

55Dec: 55% viability

64%

Humid

1/12

Running

61Jan: 61% viability

63Feb: 63% viability

73Mar: 73% viability

55Apr: 55% viability

47May: 47% viability

32Jun: 32% viability

16Jul: 16% viability

8Aug: 8% viability

8Sep: 8% viability

23Oct: 23% viability

44Nov: 44% viability

47Dec: 47% viability

1/12

Running

61Jan: 61% viability

63Feb: 63% viability

73Mar: 73% viability

55Apr: 55% viability

47May: 47% viability

32Jun: 32% viability

16Jul: 16% viability

8Aug: 8% viability

8Sep: 8% viability

23Oct: 23% viability

44Nov: 44% viability

47Dec: 47% viability

40%

Humid

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

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

Confidence: High

West Bay · Cayman Islands

Climate

Climate Lab·West Bay

Lifestyle Calendar·West Bay

Air Quality Profile

Air Quality Profile

Who thrives in West Bay

Frequently asked about West Bay