How warm is it in Montego Bay in July?

Daytime highs averaged 31.1 °C, night-time lows 27.6 °C. The highest value of the past 10 years was 32.6 °C (18 Jul 2026), the lowest 26.1 °C (2 Jul 2018).

How often does it rain in Montego Bay in July?

On average there were 21.0 rain days (at least 1 mm) with 80.4 mm of precipitation in total.

How warm is the sea in Montego Bay in July?

The sea temperature averaged 29.2 °C (open-sea point approx. 10 km from the town).

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Montego Bay weather in July: temperature & rain

Photo: Trevor Cameron · CC BY 2.0

🇯🇲 Weather in Montego Bay in July

This is what the weather in Montego Bay (Jamaica) was like in July over the years 2017–2026.

Key facts at a glance

Prevailing weather: Light rain

Avg. daytime high

31.1 °C

30.5 °C – 31.5 °C

Avg. night-time low

27.6 °C

27.0 °C – 28.1 °C

Avg. rain days in period

21.0

68 % of days · ≥ 1.0 mm

Avg. precipitation in period

80.4 mm

33.3 mm – 195 mm

Avg. cloud cover

68 %

This data source has no sunshine hours – average cloud cover is shown instead.

Avg. sea temperature

29.2 °C

Sea temperature available for 8 of 10 years.

Extremes: Highest temperature 32.6 °C (18 Jul 2026) · Lowest temperature 26.1 °C (2 Jul 2018) · Avg. daily peak wind 23 km/h

Weather mix of all days

2Sunny
70Partly cloudy
28Cloudy
183Light rain
27Rain

Summary

On average 31.1 °C during the day and 27.6 °C at night.
On average 21.0 rain days (Rain day = at least 1.0 mm of precipitation) with 80.4 mm of precipitation in total.
The sea averaged 29.2 °C.
Prevailing weather: Light rain.
Warmest year: 2026 (avg. 31.5 °C), coolest: 2022 (avg. 30.5 °C).
Wettest year: 2021 (195 mm), driest: 2018 (33.3 mm).
Extremes: 32.6 °C on 18 Jul 2026 and 26.1 °C on 2 Jul 2018.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max31.5°Avg. min27.7°
Rain days
19 Rain days
Precipitation
42.0 mm
Avg. cloud cover
–
Sea temperature
29.1 °C
Max 32.6 °C · Min 27.2 °C
2025
Avg. max31.4°Avg. min27.6°
Rain days
25 Rain days
Precipitation
67.7 mm
Avg. cloud cover
67 % cloudy
Sea temperature
29.0 °C
Max 32.4 °C · Min 27.0 °C
2024
Avg. max31.0°Avg. min28.0°
Rain days
27 Rain days
Precipitation
138 mm
Avg. cloud cover
70 % cloudy
Sea temperature
29.2 °C
Max 31.9 °C · Min 27.3 °C
2023
Avg. max31.2°Avg. min28.1°
Rain days
23 Rain days
Precipitation
90.9 mm
Avg. cloud cover
67 % cloudy
Sea temperature
29.6 °C
Max 32.2 °C · Min 27.5 °C
2022
Avg. max30.5°Avg. min27.2°
Rain days
17 Rain days
Precipitation
64.6 mm
Avg. cloud cover
74 % cloudy
Sea temperature
29.1 °C
Max 31.8 °C · Min 26.3 °C
2021
Avg. max30.7°Avg. min27.2°
Rain days
24 Rain days
Precipitation
195 mm
Avg. cloud cover
67 % cloudy
Sea temperature
28.9 °C
Max 31.9 °C · Min 26.4 °C
2020
Avg. max31.4°Avg. min27.8°
Rain days
23 Rain days
Precipitation
66.3 mm
Avg. cloud cover
72 % cloudy
Sea temperature
29.3 °C
Max 32.5 °C · Min 26.9 °C
2019
Avg. max31.5°Avg. min27.5°
Rain days
19 Rain days
Precipitation
60.8 mm
Avg. cloud cover
67 % cloudy
Sea temperature
29.2 °C
Max 32.4 °C · Min 26.7 °C
2018
Avg. max30.7°Avg. min27.0°
Rain days
13 Rain days
Precipitation
33.3 mm
Avg. cloud cover
66 % cloudy
Sea temperature
–
Max 32.0 °C · Min 26.1 °C
2017
Avg. max30.7°Avg. min27.3°
Rain days
20 Rain days
Precipitation
44.7 mm
Avg. cloud cover
57 % cloudy
Sea temperature
–
Max 32.1 °C · Min 26.8 °C

Frequently asked questions

How warm is it in Montego Bay in July?: Daytime highs averaged 31.1 °C, night-time lows 27.6 °C. The highest value of the past 10 years was 32.6 °C (18 Jul 2026), the lowest 26.1 °C (2 Jul 2018).
How often does it rain in Montego Bay in July?: On average there were 21.0 rain days (at least 1 mm) with 80.4 mm of precipitation in total.
How warm is the sea in Montego Bay in July?: The sea temperature averaged 29.2 °C (open-sea point approx. 10 km from the town).

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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)