Jamay in Summer
In summer (June, July and August), Jamay sees average daytime highs around 28°C and overnight lows near 18°C, with 295 mm of rain over about 59 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 31°C in early June to 27°C by late August. The sky is clear or mostly clear about 18% of the time across summer, and the air most often feels humid.
Summer is Jamay's weakest season of the year to visit on our travel score. For the whole year in context, see Jamay's year-round climate.
- Avg daytime high
- 28°C
- 2nd-warmest season
- Avg overnight low
- 18°C
- Rainfall
- 295 mm
- 59 wet days
- Avg wind
- 5 km/h
- Travel score
- 4.7
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Jamay in Summer
Over the season highs ease from about 31°C in early June to 27°C by late August.
A typical summer day in Jamay reaches about 28°C and drops to 18°C overnight. The warmest of the three months is June, the coolest July.
Jamay weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 24° / 10° | 16 | 1.9 | 10.9 | 8.6 |
| Feb | 26° / 12° | 11 | 1.7 | 11.3 | 8.5 |
| Mar | 28° / 13° | 9 | 1.3 | 11.9 | 7.8 |
| Apr | 30° / 15° | 4 | 1.4 | 12.5 | 6.1 |
| May | 31° / 17° | 20 | 5.2 | 12.9 | 5.2 |
| Jun | 29° / 18° | 88 | 16.6 | 13.2 | 4.5 |
| Jul | 27° / 17° | 110 | 21.5 | 13.1 | 4.8 |
| Aug | 27° / 17° | 97 | 20.4 | 12.7 | 4.8 |
| Sep | 27° / 17° | 95 | 17.1 | 12.1 | 5.3 |
| Oct | 27° / 16° | 39 | 7.6 | 11.5 | 6.9 |
| Nov | 26° / 13° | 14 | 2.6 | 11 | 8.3 |
| Dec | 24° / 11° | 6 | 1.4 | 10.8 | 8.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 18% of the time across summer.
Chance of precipitation in Summer
Jamay gets around 295 mm of rain over 59 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 06 min in early June to 12 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.8 kWh/m².
Hazard calendar for Jamay
In summer, Jamay overlaps its pacific hurricane and rainy season season. The full year is below, with each hazard's peak months called out.
Jamay sits in the eastern Pacific hurricane zone; the season peaks August–September.
Jamay's rainy season runs June–September, when most of the year's rain falls.
Is summer a good time to visit Jamay?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Jamay for sightseeing.
What to pack for Jamay in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Jamay sees daytime highs around 28°C and nights near 18°C. Pack light clothes, rain gear and sun protection. About 59 days see rain.
UV index in Jamay in Summer
Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Jamay peaks around May 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 11 | 13 | 13 | 13 | 13 | 12 | 13 | 12 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 13 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Jamay in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Jamay is worst in May — around 32 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 15 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 22 | 20 | 21 | 31 | 32 | 17 | 15 | 16 | 18 | 18 | 20 | 25 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 22 | Moderate |
| Feb | 20 | Moderate |
| Mar | 21 | Moderate |
| Apr | 31 | Moderate |
| May | 32 | Moderate |
| Jun | 17 | Moderate |
| Jul | 15 | Moderate |
| Aug | 16 | Moderate |
| Sep | 18 | Moderate |
| Oct | 18 | Moderate |
| Nov | 20 | Moderate |
| Dec | 25 | Moderate |
Where is Jamay?
Jamay sits at 20.3°N, 102.7°W, 1,569 m above sea level, in Mexico. The nearest listed city is Ocotlán, 9.0 km away.
Topography around Jamay
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Jamay.
Within 3 km, the terrain around Jamay has significant variations in elevation — a maximum elevation change of 453 m around an average of 1,591 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 493 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,792 m.
The land around Jamay is covered by trees (23%), water (21%) and shrubs (20%) within 3 km, cropland (48%) and water (24%) within 16 km, and trees (31%) and cropland (31%) within 80 km.
Mexico travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 / 127 V · 60 Hz
- Prices
- ≈ 54% of US
- price level, 2025
- GDP per capita
- $13,889
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 43%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 12.8
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 440
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Jamay (20.2948°, -102.7094°, elevation 1,569 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.