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Contents
- The climate of Half Moon Bay
- The best time to visit Half Moon Bay
- The worst time to visit Half Moon Bay
- Spring weather in Half Moon Bay
- Summer weather in Half Moon Bay
- Autumn weather in Half Moon Bay
- Winter weather in Half Moon Bay
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
The climate of Half Moon Bay
Half Moon Bay experiences a tropical wet and dry climate, identified as Aw under the Köppen climate classification. The site, nestled in the Cayman Islands, receives year-round uniform temperatures with seasonal alterations in precipitation levels. Created by geographical positioning, this climate distinction showcases various weather conditions throughout the year.
Registry of monthly averages present predictable patterns within various climate facets. Year through, Half Mood Bay retains high temperatures, fluctuating from a minimum of 24.9°C (76.8°F) to a maximum of 29.7°C (85.5°F). These persistently warm conditions ensue from its tropical locale. Variation in daylight intensity, ranging from 11 hours to 13.3 hours, underpins these temperature oscillations.
Monthly rainfall marks a noticeable deviation. Rainfall ranges from 24mm (0.94") to 159mm (6.26"), with evident peaks and troughs. Majority of rainfall accentuates between May and October, converting this period into the area's rainy season. Simultaneously maintaining high temperatures, these months can be quite warm and wet. Conversely, the remaining months with lesser precipitation, varying from 28mm (1.1") to 45mm (1.77"), constitute the dry season.
Wind speeds follow a moderate course throughout the year, averaging between 17.2km/h (10.7mph) and 26.4km/h (16.4mph). In synthesis with relative humidity, consistent at approximately 75%, Half Moon Bay's overall climate appears warm and humid.
Registry of monthly averages present predictable patterns within various climate facets. Year through, Half Mood Bay retains high temperatures, fluctuating from a minimum of 24.9°C (76.8°F) to a maximum of 29.7°C (85.5°F). These persistently warm conditions ensue from its tropical locale. Variation in daylight intensity, ranging from 11 hours to 13.3 hours, underpins these temperature oscillations.
Monthly rainfall marks a noticeable deviation. Rainfall ranges from 24mm (0.94") to 159mm (6.26"), with evident peaks and troughs. Majority of rainfall accentuates between May and October, converting this period into the area's rainy season. Simultaneously maintaining high temperatures, these months can be quite warm and wet. Conversely, the remaining months with lesser precipitation, varying from 28mm (1.1") to 45mm (1.77"), constitute the dry season.
Wind speeds follow a moderate course throughout the year, averaging between 17.2km/h (10.7mph) and 26.4km/h (16.4mph). In synthesis with relative humidity, consistent at approximately 75%, Half Moon Bay's overall climate appears warm and humid.
The best time to visit Half Moon Bay
Visitors who anticipate warm and dry conditions in Half Moon Bay should consider the period from November to April. These months exhibit the least rainfall levels, from 28mm (1.1") to 57mm (2.24"), and provide clear visibility up to 10km (6.2mi). Furthermore, temperatures stay in a comfortable range, averaging from 26.1°C (79°F) to 27.1°C (80.8°F).
The worst time to visit Half Moon Bay
The time between May and October might prove less ideal for visitors. These months experience the highest rainfall, peaking notably at 159mm (6.26") in September. Despite late afternoons often enhancing landscape's attractiveness during this period, potential visitors may find the intensified humidity levels accompanied by maximum temperatures reaching upto 29.7°C (85.5°F) quite uncomfortable.
Spring weather in Half Moon Bay
The spring months usher in a mix of both dry and wet periods. March and April present rainfall levels from 24mm (0.94") to 36mm (1.42"), thus extending the preceding dry season's climate. However, rainfall spikes up to 108mm (4.25") in May, signaling the onset of the wet season. Simultaneously, temperatures progressively rise from 25.1°C (77.2°F) to 28°C (82.4°F), while the length of daylight ranges from 12 hours to 13.1 hours.
Summer weather in Half Moon Bay
Summer is the warmest and highest in terms of rainfall for the Half Moon Bay. June to August offer temperatures from 27.8°C (82°F) to 29.7°C (85.5°F). Rainfall levels escalate significantly in this period, ranging from 73mm (2.87") to 81mm (3.19"). The cloud cover% also increases during the summer months, indicating the onset of the rainy season.
Autumn weather in Half Moon Bay
Autumn continues with the wet period in Half Moon Bay, with temperatures standing between 28°C (82.4°F) and 29.4°C (84.9°F). Rainfall accumulates from 76mm (2.99") in September to a yearly high of 159mm (6.26") in October, while daylight duration reduces to around 12 hours daily.
Winter weather in Half Moon Bay
Winter in Half Moon Bay witnesses a transition from high rainfall to drier conditions, initiating in November and lasting through February. Rainfall levels reduce considerably from 86mm (3.39") in November to 45mm (1.77") by February. During this period, temperatures also descend steadily from 27.2°C (81°F) to 25.1°C (77.2°F).
Weather in January
January ushers in a promising start to the year in Half Moon Bay, with pleasantly warm temperatures averaging between 25.1°C (77.2°F) and 26.3°C (79.3°F). Despite experiencing the highest wind speed of 26.1km/h (16.2mph), the weather remains relatively stable. Weather in January »
Weather in February
February maintains the steady weather pattern experienced in January in Half Moon Bay. However, attention is drawn to the decrease in cloud cover to 33%, offering clearer skies for stargazing. Accompanied by a slightly increased average daylight time of 11.5 hours, the coastal town embraces sunny afternoons and star-studded nights. Weather in February »
Weather in March
Weather in March follows a similar trend to February, however, the temperatures exhibit a slight drop to an average range between 24.9°C (76.8°F) and 26.3°C (79.3°F). March stands out with a 30% average cloud cover that facilitates extended sunrise and sunset viewing further enhancing the beauty of Half Moon Bay. Weather in March »
Weather in April
Entering April, Half Moon Bay experiences a subtle rise in warmer temperatures with the averages shifting between 26.4°C (79.5°F) and 27.1°C (80.8°F). April shows an unusual jump in rainfall to 36mm (1.42"), creating a remarkable contrast against the preceding drier months. Weather in April »
Weather in May
May marks a significant difference compared to the previous months in Half Moon Bay, highlighted by a substantial increase in precipitation with an average rainfall of 108mm (4.25"). Accompanied by a hike in temperature range to between 27.2°C (81°F) and 28°C (82.4°F), this month signals the beginning of the warmer part of the year. Weather in May »
Weather in June
Weather in June shows characteristics similar to May. However, the month is distinctive in Half Moon Bay for being the month with the highest relative humidity at 79%. Despite the dampness, temperatures are rather pleasing ranging from 27.8°C (82°F) to 28.8°C (83.8°F). Weather in June »
Weather in July
In July, the summer temperatures reach their peak, with the averages increasing to between 28.3°C (82.9°F) and 29.1°C (84.4°F) in Half Moon Bay. Though temperatures are on the higher side, they remain within a comfortable range for beach activities and other outdoor explorations. Weather in July »
Weather in August
In Half Moon Bay, August sustains the higher summer temperatures experienced in July, averaging between 28.6°C (83.5°F) and 29.7°C (85.5°F). Interestingly, the wind speed continues to drop down to 18.5km/h (11.5mph), adding a soothing element to the overall warm weather. Weather in August »
Weather in September
September is slightly cooler than August in Half Moon Bay but maintains a comfortable temperature range from 28.5°C (83.3°F) to 29.4°C (84.9°F). In this month, attention is drawn to the reduced wind speeds, dropping to a mellow 17.2km/h (10.7mph). Weather in September »
Weather in October
October, in Half Moon Bay, experiences the highest rainfall in the year, significantly increasing to 159mm (6.26"). Nevertheless, the temperature range remains stable from 28°C (82.4°F) to 28.9°C (84°F), which is quite favorable for tourists and locals. Weather in October »
Weather in November
November weather is a mixed bag in Half Moon Bay as it gradually drifts away from the high rainfall experienced in October, while temperatures range comfortably between 26.8°C (80.2°F) and 28°C (82.4°F). A significant feature in November is the marked increase in wind speed to 25.8km/h (16mph), a shift from the previous mellow breezes. Weather in November »
Weather in December
December wraps up the climatological year in Half Moon Bay, embodying cooler temperatures ranging from 26.1°C (79°F) to 27.2°C (81°F). Highlighted is the further increase in wind speed to 26.4km/h (16.4mph), which brings a refreshing change to the tropical setting. Weather in December »
Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How many days does it rain in Half Moon Bay?
Throughout the year, there are 241.1 rainfall days, and 854mm (33.62") of precipitation is accumulated.
When is the lowest UV index in Half Moon Bay?
The month with the lowest UV index in Half Moon Bay is January, with an average maximum UV index of 6.
What time of the year is the coldest in Half Moon Bay?
The lowest temperatures are recorded in February, with averages reaching a high of 26.2°C (79.2°F) and a low of 25.2°C (77.4°F).
What are the months with the highest UV index in Half Moon Bay?
February through December, with an average maximum UV index of 7, are months with the highest UV index in Half Moon Bay, Cayman Islands.
What is the driest month in Half Moon Bay?
The month with the least rainfall is March, when the rain falls for 16 days and typically collects 24mm (0.94") of precipitation.
What is the month with the most sunshine in Half Moon Bay?
May and July, with an average of 10.6h of sunshine, are months with the most sunshine.
What is the most humid month in Half Moon Bay?
With an average relative humidity of 79%, June is the most humid month in Half Moon Bay, Cayman Islands.
When are the longest days in Half Moon Bay?
The month with the longest days in Half Moon Bay is June, with an average of 13h and 18min of daylight.
What time of the year is the hottest in Half Moon Bay?
August is the month when Half Moon Bay, Cayman Islands, sees the average highest temperatures, with a high of 29.7°C (85.5°F) and a low of 28.6°C (83.5°F).
What is the least humid month in Half Moon Bay?
With an average relative humidity of 74%, September is the least humid month in Half Moon Bay.
What is the rainiest month in Half Moon Bay?
The month with the most rainfall is October, when the rain falls for 26.5 days and typically aggregates up to 159mm (6.26") of precipitation.
What is the month with the shortest days in Half Moon Bay?
December has the shortest days of the year, with an average of 11h and 0min of daylight.
Is there Daylight Saving Time (DST) in Half Moon Bay?
Half Moon Bay does not utilize Daylight Saving Time (DST). EST timezone is used throughout the entire year.
What is the month with the least sunshine in Half Moon Bay?
December has the least sunshine of the year, with an average of 6h of sunshine.
Average temperature
Half Moon Bay, Cayman Islands
The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is February (26.2°C).
The month with the highest average low temperature is August (28.6°C).
The coldest month (with the lowest average low temperature) is March (24.9°C).
Average pressure
Half Moon Bay, Cayman Islands
- Average pressure in January:
1016.3mbar - Average pressure in February:
1016mbar - Average pressure in March:
1015.8mbar - Average pressure in April:
1014.4mbar - Average pressure in May:
1013.6mbar - Average pressure in June:
1014mbar
- Average pressure in July:
1014.8mbar - Average pressure in August:
1013.5mbar - Average pressure in September:
1012.4mbar - Average pressure in October:
1011.7mbar - Average pressure in November:
1013.4mbar - Average pressure in December:
1015.2mbar
The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is October (1011.7mbar).
Average wind speed
Half Moon Bay, Cayman Islands
- Average wind speed in January:
26.1km/h - Average wind speed in February:
24.7km/h - Average wind speed in March:
24.1km/h - Average wind speed in April:
20.7km/h - Average wind speed in May:
20.5km/h - Average wind speed in June:
21.8km/h
- Average wind speed in July:
19.2km/h - Average wind speed in August:
18.5km/h - Average wind speed in September:
17.2km/h - Average wind speed in October:
20.6km/h - Average wind speed in November:
25.8km/h - Average wind speed in December:
26.4km/h
The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is September (17.2km/h).
Average humidity
Half Moon Bay, Cayman Islands
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is September (74%).
Average rainfall
Half Moon Bay, Cayman Islands
The wettest month (with the highest rainfall) is October (159mm).
The driest month (with the least rainfall) is March (24mm).
Average rainfall days
Half Moon Bay, Cayman Islands
- Average rainfall days in January:
19.6 days - Average rainfall days in February:
16.2 days - Average rainfall days in March:
16 days - Average rainfall days in April:
16.7 days - Average rainfall days in May:
21.3 days - Average rainfall days in June:
20.9 days
- Average rainfall days in July:
20.7 days - Average rainfall days in August:
19.3 days - Average rainfall days in September:
19.9 days - Average rainfall days in October:
26.5 days - Average rainfall days in November:
23.4 days - Average rainfall days in December:
20.6 days
The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is March (16 days).
Average daylight / Average sunshine
Half Moon Bay, Cayman Islands
- Average daylight in January:
11h and 1min - Average daylight in February:
11h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 4min - Average daylight in May:
13h and 1min - Average daylight in June:
13h and 2min
- Average daylight in July:
13h and 1min - Average daylight in August:
12h and 5min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 4min - Average daylight in November:
11h and 1min - Average daylight in December:
11h and 0min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in January:
7h and 4min - Average sunshine in February:
8h and 2min - Average sunshine in March:
8h and 3min - Average sunshine in April:
9h and 1min - Average sunshine in May:
10h and 4min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
9h and 1min - Average sunshine in September:
9h and 0min - Average sunshine in October:
7h and 2min - Average sunshine in November:
6h and 1min - Average sunshine in December:
6h and 0min
The months with the most sunshine are May and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days
Half Moon Bay, Cayman Islands
- Average sunshine days in January:
5.9 days - Average sunshine days in February:
6.8 days - Average sunshine days in March:
9.3 days - Average sunshine days in April:
8.8 days - Average sunshine days in May:
6.3 days - Average sunshine days in June:
4.9 days
- Average sunshine days in July:
7.3 days - Average sunshine days in August:
8.8 days - Average sunshine days in September:
7.4 days - Average sunshine days in October:
3.1 days - Average sunshine days in November:
2.5 days - Average sunshine days in December:
4.3 days
The month with the most sunshine days is March (9.3 days).
The month with the least sunshine days is November (2.5 days).
Average UV index
Half Moon Bay, Cayman Islands
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover
Half Moon Bay, Cayman Islands
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 28).
Average visibility
Half Moon Bay, Cayman Islands
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
