San Pedro weather in August
August in San Pedro: sweltering, soaked, with muggy air — fine if you can take 24 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#9 of 12 months in San Pedro · #850 of 1413 destinations to visit in August · comfort 74/100 (tier B)
- Days
- 31°C
- Nights
- 26°C
- Wet days
- 24
- Sun
- 11 h
- Humidity
- 84%
- Daylight
- 13 h

Traveller notes on San Pedro in August
Notes from nearby Belize City (53 km away)
San Pedro doesn't have its own notes for August yet — these are about Belize City, close enough to share the season.
Forum posters cite typical August daily highs around 31C (88-90F) with overnight lows near 24C, and describe rain this time of year as most often falling overnight, leaving days sunny and clear more often than not - it seldom rains every day or all day unless a tropical low pressure system moves through. Posters specifically flag mid-August as home to Belize's well-known 'little dry season,' roughly a two-week stretch of notably reduced rainfall within the broader wet season. Posters are consistent that hurricane risk in August itself is low, citing historical records showing only a handful of hurricanes have affected Belize before September in the past century. Posters generally rate August as hot, humid and typically sunny by day for Belize City, with rain concentrated overnight and hurricane risk still modest this early in the season.
Other months in San Pedro
San Pedro's forum says October weather can be genuinely nice, with wind being the bigger day-to-day factor than rain itself - a typical day still runs sunny, hot and humid. When rain does show up it's usually overnight or a brief afternoon shower, rarely an all-day downpour, and posters were consistent it rarely derails plans. October is technically the tail end of hurricane season, but actual hurricanes hit only about once every five years on average, and several locals specifically recommended the month for the slow-season deals and quieter island.
Forum posters consistently describe April on Ambergris Caye as hot and dry, with average daily highs around 31C and overnight lows around 24C. Posters are direct that although rainfall is very low this time of year, a few days can still bring rain - typically overnight or early morning, or a brief afternoon shower, with the rest of the day staying sunny and fine. Posters consistently emphasize it doesn't rain every day and there are no all-day downpours to worry about. Posters generally rate April as one of the better months to visit San Pedro, with good, reliable weather for diving and beach days.
Add your own note from San Pedro's card on the map.
San Pedro climate normals — August
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in San Pedro in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for San Pedro's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherSan Pedro's weather peaks February–April.
Best weatherFair weatherToughest weather
What's on in San Pedro in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Sargassum season
1 Apr – 31 Aug · usuallyRiskThe weed lands on the windward beaches through the spring and summer, and how bad it gets varies enormously year to year. The bigger hotels rake it at dawn; the public stretches south of town often do not.
- Hazard
Hurricane season
1 Jun – 30 NovAmbergris Caye is a sandbar barely above the sea, and the plan for a serious storm is to move people to the mainland by boat and plane. Rates drop from August and some smaller places simply close. Source ↗
- Opening
Lobster season opens
15 Jun – 14 FebForaging seasonThe spiny lobster fishery opens on 15 June and closes on 15 February. San Pedro turns the opening into a week of street food and beach cook-offs, which is when it is cheapest and freshest. Source ↗
Nearby, and something's on
Within 300 km of San Pedro — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is San Pedro?
San Pedro in August — FAQ
- Is August a good time to visit San Pedro?
- August in San Pedro: sweltering, soaked, with muggy air — fine if you can take 24 rainy days. It ranks #9 of 12 months for San Pedro on SeasonMap's comfort score (74/100).
- What is the weather like in San Pedro in August?
- In August, San Pedro averages a daily high of 31.3°C and a low of 25.9°C, with about 192.4 mm of rain over roughly 24.4 rainy days.
- What is the air quality in San Pedro in August?
- San Pedro has a mean US Air Quality Index of about 52 in August.
Within 300 km: Caye Caulker's Lobster season opens on 15 Jun – 14 Feb, and Roatán's Coral spawning nights around 20 Aug – 25 Sep.