Best time to visit Marsh Harbour
Re-score for me — drag the dial — every chart recolours live for your heat & sea limits 27°C · sea 29°C
Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.
Default 29 °C is the Beach Climate Index "bathtub" line (Morgan et al.) — where the sea stops being refreshing and starts feeling like a warm bath.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.
Compare with another destination
Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.
Similar climatesFreeport96% · Nassau96% · Miami92%
Other destinations with the most-alike year-round climate to Marsh Harbour (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Marsh Harbour's. Based on the 2020-2024 climatology, not this year's actual weather.
Month-by-month
| Month | Temp °C | Feels °C | Rain days | Rain h | Rain h/day | Humidity | Wind km/h | Sun h | UV | Interest | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 20–24 | 24 | 11 | 112 | 10.2 | 64% | 24 | 208 | 5 | Quiet | 8 |
| Feb | 20–25 | 25 | 12 | 118 | 9.8 | 63% | 24 | 215 | 6 | Quiet | 8 |
| Mar | 21–26 | 26 | 11 | 114 | 10.4 | 60% | 23 | 247 | 8 | Quiet | 8 |
| Apr | 22–27 | 27 | 13 | 139 | 10.7 | 60% | 24 | 248 | 9 | Quiet | 7 |
| May | 23–28 | 30 | 17 | 188 | 11.1 | 64% | 21 | 267 | 9 | Peak | 5 |
| Jun | 25–29 | 32 | 20 | 233 | 11.7 | 70% | 20 | 247 | 9 | Quiet | 3 |
| Jul | 27–31 | 35 | 17 | 194 | 11.4 | 64% | 18 | 274 | 10 | Peak | 3 |
| Aug | 27–32 | 35 | 18 | 196 | 10.9 | 64% | 19 | 265 | 9 | Quiet | 3 |
| Sep | 26–31 | 34 | 19 | 197 | 10.4 | 66% | 17 | 244 | 8 | Peak | 3 |
| Oct | 25–29 | 31 | 15 | 194 | 12.9 | 66% | 22 | 224 | 7 | Quiet | 4 |
| Nov | 23–27 | 27 | 14 | 179 | 12.8 | 68% | 24 | 206 | 5 | Quiet | 6 |
| Dec | 21–25 | 25 | 11 | 129 | 11.7 | 65% | 24 | 201 | 4 | Peak | 8 |
UV Index in Marsh Harbour by Month
UV index in Marsh Harbour peaks at 10 (very high) in July, dropping to 4 (moderate) in December. March, April, May, June, July, August, September reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.
Best months in detail
January
8/1020–24°C · 11 rain days (112h) · 208 sun hours · 64% humidity · Quiet crowd · UV 5 (moderate)
March
8/1021–26°C · 11 rain days (114h) · 247 sun hours · 60% humidity · Quiet crowd · UV 8 (very high) · sunniest 1 in 10 days reach 10 (very high)
February
8/1020–25°C · 12 rain days (118h) · 215 sun hours · 63% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (high)
Every month
Show the other 9 months in detail
April
7/1022–27°C · 13 rain days (139h) · 248 sun hours · 60% humidity · Quiet crowd · UV 9 (very high)
May
5/1023–28°C (feels 30°C) · 17 rain days (188h) · 267 sun hours · 64% humidity · Peak crowd · UV 9 (very high)
June
3/1025–29°C (feels 32°C) · 20 rain days (233h) · 247 sun hours · 70% humidity · Quiet crowd · UV 9 (very high) · sunniest 1 in 10 days reach 11 (very high)
July
3/1027–31°C (feels 35°C) · 17 rain days (194h) · 274 sun hours · 64% humidity · Peak crowd · UV 10 (very high) · sunniest 1 in 10 days reach 11 (extreme)
August
3/1027–32°C (feels 35°C) · 18 rain days (196h) · 265 sun hours · 64% humidity · Quiet crowd · UV 9 (very high) · sunniest 1 in 10 days reach 11 (extreme)
September
3/1026–31°C (feels 34°C) · 19 rain days (197h) · 244 sun hours · 66% humidity · Peak crowd · UV 8 (very high) · sunniest 1 in 10 days reach 10 (very high)
October
4/1025–29°C (feels 31°C) · 15 rain days (194h) · 224 sun hours · 66% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 8 (very high)
November
6/1023–27°C · 14 rain days (179h) · 206 sun hours · 68% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)
December
8/1021–25°C · 11 rain days (129h) · 201 sun hours · 65% humidity · Peak crowd · UV 4 (moderate)
Frequently asked questions about visiting Marsh Harbour
When is the best time to visit Marsh Harbour?
January is the highest-scoring month (8/10 on the Holiday Climate Index). Typical conditions: 20–24°C (11 rainy days). The top three months by score are January, March, February.
What is the worst time to visit Marsh Harbour?
August is the lowest-scoring month (3/10, capped by extreme heat). Typical conditions: 27–32°C (18 rainy days).
Is Marsh Harbour too hot in summer?
5 months (June, July, August, September, October) trip the heat deal-breaker in our scoring: apparent temperature crosses the comfort cap, so even with clear skies and low rain the score is held down. Plan around it if heat tolerance is low.
When are crowds lowest in Marsh Harbour?
Search-interest seasonality (Google Trends 2021-2025) is lowest in January and peaks in July. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.
Which months in Marsh Harbour have good weather but fewer tourists?
January (climate 8/10, crowd index 0) and February (climate 8/10, crowd index 0) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Marsh Harbour by month?
UV peaks at 10 (very high) in July and is lowest in December at 4 (moderate). Monthly peak values: Jan 5, Feb 6, Mar 8, Apr 9, May 9, Jun 9, Jul 10, Aug 9, Sep 8, Oct 7, Nov 5, Dec 4. March, April, May, June, July, August, September reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.
What is the UV index in Marsh Harbour in July?
July is the peak UV month in Marsh Harbour, with a daily-peak UV index of 10 (very high). At this level, sunburn can occur in under 20 minutes on unprotected fair skin. Apply SPF 50+, wear protective clothing and a hat, and avoid direct midday sun (11:00–17:00).
How high can UV get in Marsh Harbour on the sunniest days?
Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. July is the worst case: typical days average UV 10 (very high), but the top 10% of days reach UV 11 (extreme) — and even higher. Months where the sunniest days routinely exceed the typical reading: February, March, June, July, August, September, October, November. Plan sun protection for the worst case, not the average.
Is air quality in Marsh Harbour bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 1 month: July. The worst month is July with a typical-day mean of 11 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 18 µg/m³ (unhealthy for sensitive) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.