Hell, Cayman Islands experiences average highs of 29°C (84°F) and lows of 26°C (79°F) throughout the year. Rainfall is moderate, averaging about 11 rainy days per month. Sunshine is abundant, averaging about 11 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have stayed broadly stable across the available records.
Hell, Cayman Islands Weather & Climate 2026
Monthly climate averages for Hell, Cayman Islands. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Jun–Nov At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.2/10
Best: January, February, March, April, December
UV Index
8
High
Temperature 29°C / 26°C
Feels Like 32°C / 28°C
Rainy Days 11
Rainfall 76 mm
Sunshine 11 h
Humidity 76%
Wind Speed 27 km/h
Dew Point 23°C
Hottest Month
30°C
August
Avg Low 28°C
Rain 14 days
Coldest Month
25°C
January
Avg High 27°C
Rain 7 days
Driest Month
4 days
February
Avg High 27°C
Avg Low 25°C
Windiest Month
31 km/h
December (Gusts 42)
Sea Temperature
27°C – 31°C
Warmest water: September (
30.8°C
)
Worst Time to Visit
Consider avoiding July, August, September due to extreme heat, frequent rain, oppressive humidity.
Sun Position
Sunrise 05:47
Daylight 13.3h
Sunset 19:05
Live conditions —
Hell on the map · live conditions
Hell, Cayman Islands
- Continent
- Americas
- Country
- Cayman Islands
- City
- Hell
- Population
- 2.1K
- Coordinates
- 19.38°, -81.41°
Seasonal Breakdown
Spring
Mar–May
Avg High 28°C
Avg Low 26°C
Rain 7 days/mo
2/3 best months
Summer
Jun–Aug
Avg High 30°C
Avg Low 28°C
Rain 13 days/mo
Autumn
Sep–Nov
Avg High 29°C
Avg Low 27°C
Rain 17 days/mo
Winter
Dec–Feb
Avg High 27°C
Avg Low 25°C
Rain 7 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
High Low Shaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 27°C / 25°C . Feb: 27°C / 25°C . Mar: 27°C / 25°C . Apr: 28°C / 26°C . May: 29°C / 27°C . Jun: 29°C / 27°C . Jul: 30°C / 28°C . Aug: 30°C / 28°C . Sep: 30°C / 28°C . Oct: 29°C / 27°C . Nov: 28°C / 26°C . Dec: 27°C / 26°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 26 mm. Feb: 16 mm. Mar: 15 mm. Apr: 25 mm. May: 83 mm. Jun: 118 mm. Jul: 52 mm. Aug: 93 mm. Sep: 112 mm. Oct: 196 mm. Nov: 131 mm. Dec: 41 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 73%. Feb: 73%. Mar: 73%. Apr: 75%. May: 77%. Jun: 79%. Jul: 77%. Aug: 76%. Sep: 77%. Oct: 78%. Nov: 76%. Dec: 74%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 30 km/h . Feb: 30 km/h . Mar: 28 km/h . Apr: 26 km/h . May: 24 km/h . Jun: 27 km/h . Jul: 24 km/h . Aug: 24 km/h . Sep: 22 km/h . Oct: 26 km/h . Nov: 30 km/h . Dec: 31 km/h .
Sunshine
Sunshine
Sunshine: Jan: 10h. Feb: 11h. Mar: 11h. Apr: 12h. May: 12h. Jun: 11h. Jul: 12h. Aug: 11h. Sep: 11h. Oct: 10h. Nov: 10h. Dec: 10h.
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 28°C . Feb: 27°C . Mar: 27°C . Apr: 28°C . May: 29°C . Jun: 30°C . Jul: 30°C . Aug: 31°C . Sep: 31°C . Oct: 30°C . Nov: 29°C . Dec: 28°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 6. Feb: UV 7. Mar: UV 9. Apr: UV 9. May: UV 9. Jun: UV 8. Jul: UV 9. Aug: UV 9. Sep: UV 8. Oct: UV 8. Nov: UV 6. Dec: UV 6.
Monthly Daylight Hours
Daylight 12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 25 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 31°C | Aug · 30°C |
| Coldest month | Jan 2025 · 25°C | Jan · 25°C |
| Wettest month | Oct 2025 · 147 mm | Oct · 196 mm |
| Windiest month | Jan 2025 · 32 km/h | Dec · 31 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March best
Excellent April best
Excellent May
Fair June
Fair July
Poor August
Poor September
Poor October
Wet November
Good December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 27°C / 25°C | 28°C / 25°C | 7days (26 mm) Good | 9.9h Good | 73% Muggy | 6.2 High | Excellent | View Details |
| February best | 27°C / 25°C | 29°C / 25°C | 4days (16 mm) Good | 10.6h Excellent | 73% Muggy | 7.3 Very High | Excellent | View Details |
| March best | 27°C / 25°C | 30°C / 26°C | 4days (15 mm) Good | 10.9h Excellent | 73% Muggy | 8.6 Very High | Excellent | View Details |
| April best | 28°C / 26°C | 32°C / 27°C | 5days (25 mm) Good | 11.5h Excellent | 75% Muggy | 8.9 Very High | Excellent | View Details |
| May | 29°C / 27°C | 33°C / 29°C | 11days (83 mm) Wet | 11.6h Excellent | 77% Humid | 9 Very High | Fair | View Details |
| June | 29°C / 27°C | 34°C / 30°C | 12days (118 mm) Wet | 11.1h Excellent | 79% Humid | 8 Very High | Fair | View Details |
| July | 30°C / 28°C | 35°C / 31°C | 12days (52 mm) Wet | 12h Excellent | 77% Humid | 8.8 Very High | Poor | View Details |
| August | 30°C / 28°C | 36°C / 31°C | 14days (93 mm) Wet | 11.2h Excellent | 76% Humid | 8.7 Very High | Poor | View Details |
| September | 30°C / 28°C | 36°C / 31°C | 17days (112 mm) Wet | 10.6h Excellent | 77% Humid | 8.2 Very High | Poor | View Details |
| October | 29°C / 27°C | 33°C / 30°C | 20days (196 mm) Wet | 9.8h Good | 78% Humid | 7.5 Very High | Wet | View Details |
| November | 28°C / 26°C | 31°C / 28°C | 15days (131 mm) Wet | 9.5h Good | 76% Humid | 6.3 High | Good | View Details |
| December best | 27°C / 26°C | 29°C / 26°C | 9days (41 mm) Wet | 9.7h Good | 74% Muggy | 5.7 High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Hell are January, February, March, April, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Hell, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Hell is August, with average daytime highs of 30°C (87°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Hell is January, with average overnight lows of 25°C (77°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Hell is October, averaging 196mm of precipitation across 20 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Hell runs through October, September, November, August, with the heaviest rainfall in October. Based on 10-year averages for Hell.
Hell receives approximately 128 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Hell.
The least favorable months to visit Hell are July, August, September, primarily due to extreme heat, frequent rain, oppressive humidity. For the best conditions, consider January, February, March, April, December instead.
The annual average UV index in Hell is 8, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Hell is 76%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in January, February, March, April, May, June, July, August, September, October, November, December average 29°C (84°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Hell are 27 km/h (17 mph). The windiest month is December with peak winds reaching 31 km/h (19 mph) (gusts up to 42 km/h / 26 mph).
Hell averages 8 clear-sky days per month with overall cloud cover around 44%. The clearest skies occur in March.
The annual average dew point in Hell is 23°C (73°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Hell has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Hell ranges from 28°C (82°F) to 32°C (90°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Hell, with a climate score of 5.3/10. Consider visiting during January, February, March, April, December instead for better conditions.
For June in Hell, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 29°C (85°F) and 12 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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