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🇯🇲 Weather in Montego Bay in August
This is what the weather in Montego Bay (Jamaica) was like in August over the years 2017–2026.
Key facts at a glance
Prevailing weather: Light rain
Avg. daytime high
31.3 °C
30.4 °C – 32.0 °C
Avg. night-time low
27.9 °C
27.4 °C – 28.5 °C
Avg. rain days in period
25.0
81 % of days · ≥ 1.0 mm
Avg. precipitation in period
128 mm
50.0 mm – 370 mm
Avg. cloud cover
72 %
This data source has no sunshine hours – average cloud cover is shown instead.
Avg. sea temperature
29.6 °C
Sea measuring point approx. 10 km from the location
Extremes: Highest temperature 33.1 °C (14 Aug 2019) · Lowest temperature 26.7 °C (11 Aug 2018) · Avg. daily peak wind 21 km/h
Weather mix of all days
- 40Partly cloudy
- 8Cloudy
- 202Light rain
- 48Rain
Summary
- On average 31.3 °C during the day and 27.9 °C at night.
- On average 25.0 rain days (Rain day = at least 1.0 mm of precipitation) with 128 mm of precipitation in total.
- The sea averaged 29.6 °C.
- Prevailing weather: Light rain.
- Warmest year: 2026 (avg. 32.0 °C), coolest: 2022 (avg. 30.4 °C).
- Wettest year: 2021 (370 mm), driest: 2026 (50.0 mm).
- Extremes: 33.1 °C on 14 Aug 2019 and 26.7 °C on 11 Aug 2018.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Avg. daytime high: 2017 31°, 2018 31°, 2019 32°, 2020 31°, 2021 31°, 2022 30°, 2023 32°, 2024 31°, 2025 32°, 2026 32°. Avg. night-time low: 2017 28°, 2018 27°, 2019 28°, 2020 28°, 2021 27°, 2022 27°, 2023 29°, 2024 28°, 2025 28°, 2026 28°. Sea temperature: 2017 29°, 2018 29°, 2019 30°, 2020 30°, 2021 30°, 2022 29°, 2023 30°, 2024 30°, 2025 30°, 2026 30°.
Precipitation & rain days
Precipitation (mm): 2017 112, 2018 77, 2019 107, 2020 93, 2021 370, 2022 113, 2023 189, 2024 103, 2025 64, 2026 50.
Year by year
2026
Avg. max32.0°Avg. min28.2°- Rain days
- 19 Rain days
- Precipitation
- 50.0 mm
- Avg. cloud cover
- –
- Sea temperature
- 29.6 °C
Max 32.8 °C · Min 27.4 °C
2025
Avg. max31.9°Avg. min28.0°- Rain days
- 26 Rain days
- Precipitation
- 64.2 mm
- Avg. cloud cover
- 73 % cloudy
- Sea temperature
- 29.9 °C
Max 32.9 °C · Min 27.3 °C
2024
Avg. max31.3°Avg. min28.3°- Rain days
- 28 Rain days
- Precipitation
- 103 mm
- Avg. cloud cover
- 72 % cloudy
- Sea temperature
- 29.9 °C
Max 32.4 °C · Min 27.6 °C
2023
Avg. max31.5°Avg. min28.5°- Rain days
- 26 Rain days
- Precipitation
- 189 mm
- Avg. cloud cover
- 73 % cloudy
- Sea temperature
- 30.3 °C
Max 32.8 °C · Min 27.9 °C
2022
Avg. max30.4°Avg. min27.5°- Rain days
- 26 Rain days
- Precipitation
- 113 mm
- Avg. cloud cover
- 75 % cloudy
- Sea temperature
- 29.4 °C
Max 31.8 °C · Min 26.7 °C
2021
Avg. max30.6°Avg. min27.5°- Rain days
- 24 Rain days
- Precipitation
- 370 mm
- Avg. cloud cover
- 72 % cloudy
- Sea temperature
- 29.5 °C
Max 32.2 °C · Min 26.9 °C
2020
Avg. max31.5°Avg. min28.0°- Rain days
- 23 Rain days
- Precipitation
- 93.4 mm
- Avg. cloud cover
- 69 % cloudy
- Sea temperature
- 29.5 °C
Max 32.5 °C · Min 27.2 °C
2019
Avg. max31.6°Avg. min27.8°- Rain days
- 24 Rain days
- Precipitation
- 107 mm
- Avg. cloud cover
- 73 % cloudy
- Sea temperature
- 29.7 °C
Max 33.1 °C · Min 27.0 °C
2018
Avg. max31.1°Avg. min27.4°- Rain days
- 28 Rain days
- Precipitation
- 76.7 mm
- Avg. cloud cover
- 69 % cloudy
- Sea temperature
- 29.0 °C
Max 32.3 °C · Min 26.7 °C
2017
Avg. max31.1°Avg. min27.7°- Rain days
- 26 Rain days
- Precipitation
- 112 mm
- Avg. cloud cover
- 69 % cloudy
- Sea temperature
- 29.4 °C
Max 32.5 °C · Min 27.1 °C
Frequently asked questions
- How warm is it in Montego Bay in August?
- Daytime highs averaged 31.3 °C, night-time lows 27.9 °C. The highest value of the past 10 years was 33.1 °C (14 Aug 2019), the lowest 26.7 °C (11 Aug 2018).
- How often does it rain in Montego Bay in August?
- On average there were 25.0 rain days (at least 1 mm) with 128 mm of precipitation in total.
- How warm is the sea in Montego Bay in August?
- The sea temperature averaged 29.6 °C (open-sea point approx. 10 km from the town).
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Other destinations in August
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Sea measuring point approx. 10 km from the location (18.480, -77.980)
- Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)