Batavia in Summer
In summer (June, July and August), Batavia sees average daytime highs around 77°F and overnight lows near 60°F, with 11.3 in of rain over about 38 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 72°F in early June to 76°F by late August. The sky is clear or mostly clear about 31% of the time across summer, and the air most often feels dry.
Summer is Batavia's best season of the year to visit on our travel score. For the whole year in context, see Batavia's year-round climate.
- Avg daytime high
- 77°F
- warmest season of the year
- Avg overnight low
- 60°F
- Rainfall
- 11.3 in
- 38 wet days
- Avg wind
- 6 mph
- Travel score
- 6.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Batavia in Summer
Over the season highs climb from about 72°F in early June to 76°F by late August.
A typical summer day in Batavia reaches about 77°F and drops to 60°F overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Batavia
Once humidity and wind are folded in, summer brings about 0 days that feel above 90°F and 0 that feel at or below 32°F.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Batavia 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 (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 31° / 19° | 2.8 | 12.5 | 11.3 | 9.2 | 0.0 |
| Feb | 33° / 19° | 2.4 | 10.4 | 8.7 | 10.2 | 0.0 |
| Mar | 42° / 26° | 3.0 | 11.8 | 6.5 | 11.6 | 0.5 |
| Apr | 55° / 38° | 3.8 | 12.6 | 2.5 | 13.1 | 3.3 |
| May | 66° / 48° | 3.5 | 12.6 | 0 | 14.4 | 5.7 |
| Jun | 75° / 57° | 4.0 | 12.8 | 0 | 15.1 | 6.4 |
| Jul | 79° / 62° | 4.0 | 13.1 | 0 | 14.8 | 6.3 |
| Aug | 77° / 60° | 3.3 | 12 | 0 | 13.8 | 6.6 |
| Sep | 71° / 53° | 3.3 | 10.1 | 0 | 12.3 | 6.5 |
| Oct | 58° / 43° | 3.7 | 12.6 | 0.2 | 10.8 | 4.2 |
| Nov | 46° / 33° | 3.0 | 11.8 | 3.9 | 9.5 | 1.3 |
| Dec | 36° / 25° | 3.0 | 12.2 | 9 | 8.9 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 31% of the time across summer.
Chance of precipitation in Summer
Batavia gets around 11.3 in of rain over 38 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 54 min in early June to 13 h 06 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 5.9 kWh/m².
Is summer a good time to visit Batavia?
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 Batavia for sightseeing.
What to pack for Batavia in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Batavia sees daytime highs around 77°F and nights near 60°F. Pack sun protection. Worth having: light clothes and rain gear. About 38 days see rain.
Sea temperature near Batavia in Summer
The nearest coast averages about 66°F across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 26 mi away) is warmest in August at about 72°F and coldest in March near 37°F.
It's comfortable for a long swim from Jul 15 to Sep 11 — about 1.9 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 39 | 37 | 37 | 38 | 43 | 56 | 69 | 72 | 67 | 57 | 48 | 42 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Refreshing | Refreshing | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 39 | Bracing |
| Feb | 37 | Bracing |
| Mar | 37 | Bracing |
| Apr | 38 | Bracing |
| May | 43 | Bracing |
| Jun | 56 | Bracing |
| Jul | 69 | Refreshing |
| Aug | 72 | Refreshing |
| Sep | 67 | Cool |
| Oct | 57 | Bracing |
| Nov | 48 | Bracing |
| Dec | 42 | Bracing |
UV index in Batavia in Summer
Clear-sky midday UV across summer averages around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Batavia peaks around July 10 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 2 | 4 | 5 | 7 | 8 | 8 | 6 | 6 | 3 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | High | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Where is Batavia?
Batavia sits at 43.0°N, 78.2°W, 892 ft above sea level, in United States. The nearest listed city is East Amherst, 25 mi away.
Topography around Batavia
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Batavia.
Within 2 miles, the terrain around Batavia has only modest variations in elevation — a maximum elevation change of 98 ft around an average of 902 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,089 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,067 ft.
The land around Batavia is covered by trees (46%) within 2 miles, trees (44%) and cropland (37%) within 10 miles, and trees (45%) and water (25%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- 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 Batavia (42.9981°, -78.1875°, elevation 892 ft), 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.